What's the Paint app in the iPad Commercial?

http://www.youtube.com/watch?feature=player_embedded&v=DJxZ0HVQXo8
Geez, this was harder to figure out than I thought. What's the painting app in this commercial? It's beautiful and the paint apps that I looked up didn't seem to be it. Thanks.

I forgot about that. Sketchbook Ink.
I checked the UI and it seems like it's different than the one in the commercial. I'm looking specifically at the bar at the bottom.