It's hard not to watch in amazement as protesters from across Iran are managing to get videos and pictures out to the world of their fight for liberty despite the fact that most journalists are barred from reporting. They are using communications technology as their weapon against the regime and the camera phone has been at the center of it all.

Two years ago I honored Philippe Kahn on this site as my immigrant of the day. Kahn, a French immigrant to the US, invented the camera phone in 1997 so that he could take pictures of his new child and easily send them to others. Philippe never imagined that his invention would play a critical role in one of the most important insurrections in recent times, but many of the great inventions have been used in ways the inventors didn't envision.

Hat's off to you Philippe for helping to change the world.