A system and method for multi-mode user input for a mobile device, the system including: a second portion of the mobile device; a first portion of the mobile device that is movably engaged with the second portion to move between a closed position and an open position to allow access to an open user input...http://www.google.com/patents/US8126521?utm_source=gb-gplus-sharePatent US8126521 - Multi-mode user input system and method
