One of the side benefits of this kind of tech -- for everyone, not just visually impaired -- is being able to experience otherwise untouchable objects (camera takes an image, you touch the screen instead of the object).
Interestingly enough, FastCoDesign also had an article about a bunch of these guys. One person in particular, Ivan Poupyrev who is cited at the bottom of the above Teslatouch article, is slated to move to Motorola (furthermore Google).
http://www.olivierbau.com/teslatouch.php
One of the side benefits of this kind of tech -- for everyone, not just visually impaired -- is being able to experience otherwise untouchable objects (camera takes an image, you touch the screen instead of the object).