An iPhone app that explores unbuilt but proposed development for New York City.  Designers Irene Cheng and Brett Snyder share the inspiration behind their iPhone app and pose questions sparked by their research. Read their story and then go tour the unbuilt city.

is there any other ?

This demo -- from Pattie Maes' lab at MIT, spearheaded by Pranav Mistry -- was the buzz of TED. It's a wearable device with a projector that paves the way for profound interaction with our environment. Imagine "Minority Report" and then some.