Another prediction: the iPad is going to become a multi-purpose interface device. Look at the interface tools that already exist for programs like Pro Tools. If someone can make a profit on an input device to augment Final Cut that's just a knob with a button, imagine what you can charge to enable a multi-touch adjunct to the same program?

Have gaming interfaces appeared yet? It would be easy to undercut lots of "gaming keyboards." Especially since one has no manufacturing and shipping costs.