The File Mobility Group
Research on file replication in distributed systems.

Coda and Odyssey
Experimental projects in mobile information access.

iPic
A web server the size of a match head, coded in 256 bytes of memory, and it costs a buck.

MediaCup: mobile network & smart devices
An ordinary coffee cup augmented with sensing, processing and communication capabilities. These cups can tell you where they are, and they know when someone drinks out of them.