"In the six months since we launched Raspberry Pi, we’ve received a lot of feedback about the original board design. Over the next few weeks, we’ll be gradually rolling out a new revision 2.0 PCB which incorporates some of the most popular suggestions." - Eben
Reset, cam-GPIO, updated GPIO, mounting holes, enough power to run external hard drives, etc.
Details here: http://www.raspberrypi.org/archives/1929#comments
