Today Notion Ink gives us their paint app on their VERY REAL tablet. It looks awesome too, better than most I have seen. One benefit I see is that it is on a big surface (Notion Ink believes that storyboarding and tablets could work in the future). You can actually paint.
I love my Droid 1, but paint apps suck on it! Paint apps suck on Droid X, and would be pretty decent on the Galaxy Tab, (if you know a good paint app for Tab owners, let us know!)
Below is the video (sped up) of them drawing Wall-E on the VERY REAL tablet that they have.
Give that some time to soak in, seems you can do lots of things with this paint/picture editing app. I believe they are saying this is just beta, who knows what the full product could do!