We first heard about SixthSense in a Technology, Entertainment and Design (TED) presentation by Dr Pattie Mae earlier in February. At TEDIndia this month, MIT grad student Pranav Mistry demoed in detail the various applications of the wearable gesture interface he created, bringing virtual reality into the physical world. The technology cobbles together a camera and image projector system that you hang around your neck and sensors you wear on your fingertips. To call someone, you simply extend your hand and a dial pad appears on your fingers. To find out the time, just draw a circle on your wrist. And we're only scratching the surface of SixthSense's potential. The best part? Mistry said he'll open source the software starting next month. Watch the video if you haven't already seen it.