Reuters recently did a tour of Microsoft Research Labs in Cambridge where they were shown Second Light, Sense Cam and other projects being worked on. They also have a huge, antique disk platter from main frames which had just 1 MB capacity. Surface PC and touch based computing seem to be a priority in the research labs as they show a few different types of implementations in the video.
That platter actually held about 1meg (not 1gig) of storage, per the video.
Thanks. Corrected now.