Came across this project at Helsinki university called Context Phone which is absolutely cool. The applications would have quite far reaching impact. The best one that I like is that is it is like meta phrasing mobiles. The most important purpose of is to keep me connected , to whomever I wish to. the applications here lets me know me if I can connect to any right now, if I am not able to connect then why is it so ( because the person at the other end is in a meeting or something)
Context Phone
mtrajan.com 