I received a new Raspberry PI 2 and fired it up today.  Upon running my first GPIO enabled program I got the following error:

“This module can only be run on a Raspberry Pi!”

To resolve, I just needed to update RPI.GPIO:
sudo apt-get update && sudo apt-get install python-rpi.gpio python3-rpi.gpio

More info here:

http://www.raspberrypi.org/forums/viewtopic.php?f=32&t=98466&p=684000#p683480