Microsoft Research shows off its latest idea each year at TechFest. Among those of geo-interest this year were:

LucidTouch allows users to touch an alternate location to activate a touch screen. The demo showed users touching the back of a display. The big leap? Such a system gets around the fat finger problem - where a big finger hides what is of interest, or is not "fine enough" to zero in on a button or area of interest.

Another technology, unnamed, taps into cell phones, armed with accelerometers, to capture information about the commute - where potholes are, when and where horns are honked. The data is sent to a server for use by drivers to find the best route. I guess it could also be used to indentify where roads need to be repaired.

- InfoWorld