A remote control unit selectively transmits a control signal for remotely controlling an electronic device. The unit defines an imaginary cut plane that substantially bisects the unit. The unit includes a plurality of input features collectively disposed symmetrically with respect to the imaginary cut...http://www.google.com/patents/US20090002218?utm_source=gb-gplus-sharePatent US20090002218 - DIRECTION AND HOLDING-STYLE INVARIANT, SYMMETRIC DESIGN, TOUCH AND BUTTON BASED REMOTE USER INTERACTION DEVICE