Omni Touch by Microsoft Research and CMU is a wearable projection system which can superimpose keyboards, keypads and other controls onto any surface. Maybe this will change the landscape of repetitive stress injuries.
Fingerprint Padlock - Your fingers are your keys! Just slide your finger to unlock instantly! Never worry about lost, stolen or forgotten keys anymore. Super large storage allowing 10 users. Indoor use only powered by 2 AAA batteries.