Notable hardware input systems

• Datahand: review
• https://www.youtube.com/watch?v=_rzFqEqzhmA
• Orbitouch: http://orbitouch.com/
• https://www.youtube.com/watch?v=yrx6Gsr7BYw
• Twiddler 2: http://handykey.com
• https://www.youtube.com/watch?v=3pk3XTWxjtw
• FrogPad2: http://www.frogpad2.com/
•  https://www.youtube.com/watch?v=bUKT1ex47zc
• Roll-up keyboard: http://www.usbgeek.com/products/usb-illuminated-roll-up-keyboard
• https://www.youtube.com/watch?v=kBfv4USMyHc
• Multitouch keyboard: http://uncrate.com/stuff/glass-multi-touch-keyboard-mouse/ 
• Concept keyboard 
• QwikKeyz: http://qwik-keyz.com/
•  https://www.youtube.com/watch?v=Rbi-VuwKDzc
• Keystick: www.yankodesign.com/2009/12/11/folding-fan-is-a-keyboard/
• Keyless Lifebook: http://www.designboom.com/design/keyless-lifebook-by-laura-lahti-fujitsu-design-award-2011-shortlisted-entry/