DSiPaint Spriter is the next big app for the site, letting you draw animated images the size of character sprites on the SuperNES. You can create sprites that are 8 frames, 4 frames, or 4 wide frames. Enjoy!
Savant and I are moving this week (just 6 miles), so I released a beta version of Spriter beforehand. I will be adding all the links to its menu and changing the icons next weekend.