I'm having a devil of a problem with my iPhone keyboard that may force me to return it. Slowly but surely the functionality of the lowest row of keys (return/space/go/etc) has disappeared. Instead when I press any of those keys it activates the button in the row directly above. This is only the case on the keyboard, any other functions on the bottm of the screen (the phone menu, ipod menu, email check) works as usual. This problem occurs wherever the keyboard does - safari, mail, notes. I've restored the firmware twice, once restoring my settings and once as a new phone. No luck. Help!