From "This demo, from Pattie Maes' lab at MIT (and spearheaded by her student Pranav Mistry), was the buzz of TED2009. Sixth Sense is a wearable device with a projection screen that paves the way for profound, data-rich interaction with our environment. Imagine Minority Report and then some. (Recorded in February 2009 in Long Beach, California. Duration: 08:42.)"

Sixth Sense - a Wearable Gestural Interface

Microsoft "skinput"