It probably isn't too likely that testing extras software will require reset, you should be able to just uninstall them the same way you originally installed them. However, should worst happen:

1) There should be software reset switch somewhere in the menus, though it was pain in the *** to find in earlier tablets

2) You can download re-flashing application to your PC and use the USB cable to reset the device.

Maybe I'll find some time next week to install the SDK and play a bit with the GUI. The sad few minutes I've had with the prototypes didn't really give me too much time to study menu structure