All right, so I really want an iPad. I didn't realize how much I needed one before I saw this lovely sprite-building app by Terrible Games called Sprite Something [via Technabob]:

It has a bare-bones Photoshop look and is probably incredibly easy to use with such a large, touch-screen interface. You can animate the sprites and upload them to a PC/Mac for storing or later use. I'm not entirely sure what the applications for such a program are, but it might make small, faux-retro game development just that much easier. 

Sprite Something is $2.99 in the app store.