Abstract: In one embodiment, one or more computing devices determine, substantially in real time and locally at a mobile device, one or more current dynamic operating conditions of the mobile device related to energy consumption by the mobile device. The computing devices identify a pre-determined device state that corresponds to the current dynamic operating conditions of the mobile device and determine, based at least in part on the pre-determined device state, an action for the mobile device to take, the action being related to energy consumption by the mobile device.

Abstract: In one embodiment, a method includes receiving a request from a client computing device of a user to access a communication network; and identifying a particular tier for the client computing device from among a number of tiers of service based at least in part on social-graph information of the user. Each tier of service includes one or more session settings of the communication network. The method also includes configuring a session of the communication network for the client computing device based at least in part on one or more of the session settings of the identified tier of service; and establishing the configured session between the client computing device and the communication network.

Abstract: In one embodiment, a method comprising by one or more computing devices, transmitting, from a first mobile device, a first message that includes a first user identifier corresponding to a first user of the first mobile device, wherein the first user identifier corresponds to a user account of the first user in a social-networking system, receiving, at the first mobile device, one or more second messages that includes a second user identifier corresponding to a second mobile device within a direct radio connectivity of the first mobile device, wherein the second user identifier corresponds to a respective user account of a second user in the social-networking system, and storing, at the first mobile device, information received in the second message for access by one or more applications hosted on the first mobile device.

Abstract: In one embodiment, a method includes, by software of a computing device, dynamically identifying a particular region of a display of the computing device. The method also includes, by the software and through a device driver of the computing device, dynamically adjusting one or more particular ones of a plurality of backlighting components of the display associated with the particular region.

Abstract: In one embodiment, device status information is received from a mobile device of a first user. The device status information may include: information related to power for the device, information related to network connectivity of the device, or a notification mode of the device. Outgoing messages may be identified to be sent to the first user. A value may be computed for each of the outgoing messages. The computed value may be based on an affinity score determined with respect to an originator of the message and the first user. Based on the computed value, at least one of the outgoing messages may be selected for placement into an outgoing message queue. Upon the detection of a triggering condition, the selected messages may be sent to the mobile device. The triggering condition may be based on the device status information and the respective values of the outgoing messages.

Abstract: In one embodiment, one or more computing devices determine, substantially in real time and locally at a mobile device, one or more current dynamic operating conditions of the mobile device related to energy consumption by the mobile device. The computing devices identify a pre-determined device state that corresponds to the current dynamic operating conditions of the mobile device and determine, based at least in part on the pre-determined device state, an action for the mobile device to take, the action being related to energy consumption by the mobile device.

Abstract: In one embodiment, a method includes, by software of a computing device, dynamically identifying a particular region of a display of the computing device. The method also includes, by the software and through a device driver of the computing device, dynamically adjusting one or more particular ones of a plurality of backlighting components of the display associated with the particular region.

Abstract: In one embodiment, a mobile device determines a notification mode based on the mobile device's user interface mode, and transmits a message comprising the notification mode to a server, causing the server to transmit one or more messages to the mobile device based on the notification mode.

Abstract: In one embodiment, a method includes receiving real-time sensor data from N sensors on the computing device. The real-time sensor data corresponds to a transition in a physical state of the computing device caused by a user of the computing device. The method also includes applying a linear function to the real-time sensor data from each of the N sensors; determining a vector based on an N-tuple comprising the derivatives; comparing the vector with a pre-determined hyperplane with N?1 dimensions; and determining based on the comparison whether the transition is an event corresponding to any of one or more pre-determined imminent uses of the computing device by the user or a non-event not corresponding to any of the pre-determined imminent uses of the computing device by the user.

Abstract: In one embodiment, a method includes receiving real-time sensor data from multiple sensors located on multiple surfaces of a computing device; detecting a transition in the real-time sensor data from a steady state; and determining based on the detection an imminent use of the computing device.

Abstract: In one embodiment, a method includes receiving real-time sensor data from a number of sensors of different sensor types on a computing device. The real-time sensor data corresponds to a transition in a physical state of the computing device caused by a user of the computing device. The method also includes correlating the real-time sensor data from the number of sensors of different sensor types on the computing device; determining based on the correlation an intended imminent use of the computing device by the user; and automatically initiating based on the determination a pre-determined function of the computing device.

Abstract: In one embodiment, a first computing device communicating with a second computing device through a communications channel transmits an out-of-band message indicative of the urgency of the communication through a notification channel. In particular embodiments, a server acts as a proxy for relaying the out-of-band message from the first device to the second device. The second device calculates an implicit urgency score based on the communication characteristics, and combines the implicit score with the explicit urgency indicator to determine whether a call is urgent. In particular embodiments, the server calculates an implicit urgency score based on a number of factors, and the score is composited with the overall urgency score. In particular embodiments, communication handling may be affected by the determination of urgency.

Abstract: In one embodiment, a method includes detecting interception of data sent by the computing device to a first network resource through a communication network. The first network resource corresponds to a particular domain of the communication network. The method also includes determining whether the communication network is administered by the particular domain; and automatically generating a request to access the communication network that identifies a second network resource based at least in part on the determination. The second network resource is configured to authenticate a user to the particular domain of the communication network. The method also includes sending the request to the second network resource to access the communication network.

Abstract: In one embodiment, a method includes detecting a request from a user agent of a client computing device of a user to access a communication network through the router; and automatically redirecting the user agent from a first network resource to second network resource. The first network resource is configured to authenticate the user to provide access to the communication network. The second network resource is configured to authenticate the user to provide access to a particular domain of the communication network. The method also includes providing to the user agent access to the particular domain of the communication network if the second network resource successfully authenticates the user.

Abstract: In one embodiment, a method includes configuring a first router of a second entity to link the first router to a communication network of the second entity. The configuration of the first router establishes router-configuration data for the communication network on a computer system of a first entity. The method also includes configuring a second router of the second entity to link the second router to the communication network using at least some of the router-configuration data for the communication network established on the computer system of the first entity.

Abstract: In one embodiment, a method includes broadcasting, from a first mobile device, a message having an identity of the first mobile device and conditions for connecting to a network through the first mobile device and receiving, at the first mobile device, a request from one or more second mobile devices that includes second user identifiers corresponding to respective second users of the one or more second mobile devices. The second user identifiers correspond to respective user accounts of one or more second users in a social-networking system. The method also includes determining, at the first mobile device, whether the one or more second mobile devices are authorized to access the network through the first mobile device and, if the one or more second devices are authorized to access the network, then configuring the first mobile device to provide the second mobile device network access.

Abstract: In one embodiment, a method includes accessing at least two determinations of the location of a mobile computing device, with each determined location having been determined without reference to explicit location information manually input by a user of the mobile computing device. At least one first determined location is compared with at least one second determined location, with comparisons being made between location determinations made based on different location determination input. A functionality associated with the mobile computing device is allowed if the first determined location corresponds to at least one of the second determined locations.

Abstract: In one embodiment, a computer system determines a wireless transmit cost for each of one or more outgoing messages for a first user, and transmits to the first user's mobile device at least one of the one or more outgoing messages based on the mobile device's power state and respective wireless transmit costs of the one or more outgoing messages.

Abstract: In one embodiment, a computer system determines a wireless transmit cost for each of one or more outgoing messages for a first user, and transmits to the first user's mobile device at least one of the one or more outgoing messages based on the mobile device's power state and respective wireless transmit costs of the one or more outgoing messages.

Abstract: In one embodiment, a computing device dynamically determines a current viewing direction with respect to a display of the computing device; the computing device also dynamically directs at least some light emitted by at least a portion of the display toward the current viewing direction.