Patent ID: 8558796

Claim:
A system, comprising: a physical keyboard overlay configured for being removably attached to a touch screen display of a touch screen of a handheld limited-display device, wherein the touch screen display supports visual display of a limited-size virtual keyboard having a plurality of virtual keys, wherein the physical keyboard overlay comprises a plurality of physical keys, wherein one or more physical keys of the plurality of physical keys directly correspond to one or more corresponding virtual keys, wherein the physical keyboard overlay comprises at least a first physical key that is positioned over a corresponding first virtual key by a first alignment offset, such that the first physical key does not directly overlay the corresponding first virtual key, when the physical keyboard overlay is removably attached to the handheld limited-display device; and at least a first actuator in a diagonal operational relationship with both the first physical key and the corresponding first virtual key, wherein the first actuator engages the first virtual key, in response to user interaction with the first physical key.