Best Invention! What do people really need? (Prarnav Mistry from MIT)

Hi class, I'd like to share a link of video here.
This genius from MIT has invented something incredibly surprising,
and the reason I want you to see it is that as Mr.Ahmad Shuja(hope I am spelling the name correctly) has quoted from Henry Ford 'When I ask custmers what they want, they tell me faster horses!' It is so imprtant to think for your customers what they really need isn't it :P


I bet this technology will definitely sells well, but the guy is s nice that he is actually thinking about giving it for free :D

if you don't see the link, please go to
http://www.youtube.com/watch?v=qC3H3JOtvSs



p.s it gets really cool after 6:27, so be patient and watch it =)