DARPA Network Challenge (find the red balloons) is live

See also:<p><a href="http://www.openredballoon.com/" rel="nofollow">http://www.openredballoon.com/</a> <a href="http://www.10redballoons.com/darpa/" rel="nofollow">http://www.10redballoons.com/darpa/</a> <a href="http://balloon.mit.edu/" rel="nofollow">http://balloon.mit.edu/</a>