Summary: When you touch your own body, you feel exactly what you touch — better feedback than any external device. And you never forget to bring your body.
Usability expert Jakob Nielsen discusses the future of HCI (Human Computer Interaction) and Ubiquitous User Interfaces in the latest instalment of his blog, Alertbox. Specifically he looks at two concepts that use human body parts as user interfaces: Sean Gustafson‘s hand based interface (pictured) and the EarPut, ear based input system being developed by Roman Lissermann and colleagues from the Technical University of Darmstadt. One very interesting discovery that has been made through this work is that when blindfolded, users were almost twice as fast using the hand interface than they were using a regular glass touch screen. Read the full article here http://www.nngroup.com/articles/human-body-touch-input/