This video is a preview of an idea, so who knows if Nomad's "artist brush" is just a fancy video of a fake technology (remember the cocaine iPhone app?). If it does happen to work out, though, rest assured that this thing will be able to provide you with minutes of couch-side iPad fun. Just don't let us catch you taking it out to sketch our portraits on the subway, or we're gonna have our intern make you feel like a small human. Hit the link to sign up for product updates. [Nomad]