It then was suberseded by the nanoPAD 2.
The first one had some problems, where the pads got stuck or didn't react at all. I sent mine back once, but the new one had the same problems after a few months. By searching the net I found a solution for the problem.
There are also some scripts available for the nanoPAD:
Peter Kirn from the awesome Create Digital Music made a remote script for Ableton Live.
Ned Rush did a FX rack for Ableton Live which simulates the Korg Kaoss Pad.
And there is nativeKONTROL who wrote two programs for the nanoPAD which run in the background and provide either scales and chords or the ability to learn chords via a second controller.
That's it for now. If you find any other useful links please provide them in the comments.