Abstract: In general, one aspect of the subject matter described herein can be embodied in methods that include the actions of: for each of a plurality of devices, perceiving, in relation to the device, one or more proximate devices, generating a record of the perception of the one or more proximate devices, receiving, from at least one of the one or more proximate devices, one or more records of respective prior perceptions of one or more devices in relation to the at least one of the one or more proximate devices, and providing, to another device that is not among the one or more proximate devices, (a) the record of the perception of the one or more proximate devices and (b) the one or more records of respective prior perceptions.

Abstract: In general, one aspect of the subject matter described herein can be embodied in methods that include the actions of: for each of a plurality of devices, perceiving, in relation to the device, one or more proximate devices, generating a record of the perception of the one or more proximate devices, receiving, from at least one of the one or more proximate devices, one or more records of respective prior perceptions of one or more devices in relation to the at least one of the one or more proximate devices, and providing, to another device that is not among the one or more proximate devices, (a) the record of the perception of the one or more proximate devices and (b) the one or more records of respective prior perceptions.

Abstract: A device for presenting content to a user is utilized in combination with a general purpose computer. The computer has a processor, a computer communications interface, a computer memory and an operating system. The operating system has one or more file management tools. The device has a housing, a device communications interface and a device memory. The device memory comprises a boot partition which includes boot software. The boot software is copied from the device into the computer memory and is executed from the computer memory by the processor. The device memory also comprises a secure partition inaccessible by the file management tools and having content stored thereon. The device memory also comprises content delivery software, which is copied to the computer memory, and when executed by the processor from the computer memory can access the content from the secure partition and present it to the user as sensory data.

Abstract: A device for presenting content to a user is utilized in combination with a general purpose computer. The computer has a processor, a computer communications interface, a computer memory and an operating system. The operating system has one or more file management tools. The device has a housing, a device communications interface and a device memory. The device memory comprises a boot partition which includes boot software. The boot software is copied from the device into the computer memory and is executed from the computer memory by the processor. The device memory also comprises a secure partition inaccessible by the file management tools and having content stored thereon. The device memory also comprises content delivery software, which is copied to the computer memory, and when executed by the processor from the computer memory can access the content from the secure partition and present it to the user as sensory data.

Abstract: A device for presenting content to a user is utilized in combination with a general purpose computer. The computer has a processor, a computer communications interface, a computer memory and an operating system. The operating system has one or more file management tools. The device has a housing, a device communications interface and a device memory. The device memory comprises a boot partition which includes boot software. The boot software is copied from the device into the computer memory and is executed from the computer memory by the processor. The device memory also comprises a secure partition inaccessible by the file management tools and having content stored thereon. The device memory also comprises content delivery software, which is copied to the computer memory, and when executed by the processor from the computer memory can access the content from the secure partition and present it to the user as sensory data.