AirSwitch - How lazy are we getting !
Actually its kinda cool.
I like it.
It's like a magician trick :)
http://www.mathmos.com/usa/erol.html#2738X0
Checkout these guys. They have lots of other cool stuff too.
"The Japanese arm of Amazon, an online retailer, offers a service that allows subscribers to carry out a cheeky price check while browsing a bookstore. Snap a picture of the bar-code on a book or CD, and a quick over-the-air look-up will tell you if Amazon’s price is lower. Japanese consumers can even use the technology to find out how fresh their fish is. Scan the bar-code on its packaging, and a text message arrives in seconds detailing when it was caught, on which boat, and even the