The present invention relates to unsubscribing from notification of future messages in an existing message thread. This buffered request may be forwarded to the cache if it has the highest priority among a number of buffered requests that also wish to access the cache. The map may be an overhead map, similar to a map found at a shopping mall or a 3-dimensional map. Surfaces at the proximal and distal edges of the transverse sill are spaced linearly apart and lie approximately along a common viewing axis of a wearer during use. Access to the particular application or resource when it is determined that continued authentication is not maintained. A request for data is received from the mobile device and the data is delivered from a service provider to the mobile device.