Abstract: Inventory holders in an inventory system can be moved among differing storage positions. The moves can be performed by mobile drive units not otherwise transporting inventory holders directly to or from inventory stations. A free mobile drive unit can move an inventory holder not likely to be useful soon at any nearby station from a storage position near the station to a position farther away from the station. A mobile drive unit can move an inventory holder likely to be useful soon from a storage position farther away from one or more stations to a storage position nearby one or more stations.

Abstract: Inventory holders in an inventory system can be moved among differing storage positions. The moves can be performed by mobile drive units not otherwise transporting inventory holders directly to or from inventory stations. A free mobile drive unit can move an inventory holder not likely to be useful soon at any nearby station from a storage position near the station to a position farther away from the station. A mobile drive unit can move an inventory holder likely to be useful soon from a storage position farther away from one or more stations to a storage position nearby one or more stations.

Abstract: Inventory holders in an inventory system can be moved among differing storage positions. The moves can be performed by mobile drive units not otherwise transporting inventory holders directly to or from inventory stations. A free mobile drive unit can move an inventory holder not likely to be useful soon at any nearby station from a storage position near the station to a position farther away from the station. A mobile drive unit can move an inventory holder likely to be useful soon from a storage position farther away from one or more stations to a storage position nearby one or more stations.

Abstract: Methods and apparatus for use in communicating messages to multiple recipients are described. A wireless device receives a first input request for creating a new message, and also receives one or more second input requests for selecting a plurality of recipient identifiers for the new message. The wireless device also receives a third input request which indicates whether or not the message is for a group conversation. When the third input request indicates group conversation, the wireless device formats the recipient identifiers in first header fields (e.g., CC header fields) of an MMS message. When the third input request indicates no group conversation, the wireless device alternatively formats the recipient identifiers in second header fields (e.g., BCC header fields) of the MMS message. The MMS message is then transmitted to the recipient identifiers via a wireless network. Recipient devices may process the message as group or non-group (e.g.

Abstract: Methods and apparatus for use in communicating messages to multiple recipients are described. A wireless device receives a first input request for creating a new message, and also receives one or more second input requests for selecting a plurality of recipient identifiers for the new message. The wireless device also receives a third input request which indicates whether or not the message is for a group conversation. When the third input request indicates group conversation, the wireless device formats the recipient identifiers in first header fields (e.g., CC header fields) of an MMS message. When the third input request indicates no group conversation, the wireless device alternatively formats the recipient identifiers in second header fields (e.g., BCC header fields) of the MMS message. The MMS message is then transmitted to the recipient identifiers via a wireless network. Recipient devices may process the message as group or non-group (e.g.