In the iPad's defense, I don't think it was ever meant to be a productive device. You don't see the people on the billboards reclining with one knee up, typing the next great economics manifesto on their iPads. You see them consuming. Possibly about to raise a finger for a solitary tap, maybe to see another video, or read another email.
But I wish I could be productive with it. I wish I could write on it. I wish I could create with it. But there's no cause for concern - all I see is an opportunity for improvement in this space. There's plenty of room for future innovation in the tablet market, and the iPad is just the beginning. Bring it on.