Patent ID: 8325150

Claim:
A physical overlay that, when secured to a mobile device, covers at least a portion of a user interface of the mobile device, the physical overlay comprising: a front portion having one or more input areas that allow a user to input data into the mobile device, wherein configuration data that describe a configuration of the one or more input areas associated with the physical overlay is provided to the mobile device, wherein at least a portion of the user interface of the mobile device is modified to correspond to a physical location of the one or more input areas on the front portion of the physical overlay, wherein the mobile device has a detection system that detects the physical overlay being used and retrieves the configuration data associated with the physical overlay, wherein the physical overlay has a first configuration of one or more input areas on the front portion and has a second configuration of one or more second input areas on a back portion of the physical overlay; and side portions that secure the physical overlay to the mobile device, wherein the physical overlay when secured stays in place relative to the mobile device.