A while ago I picked up Motion 2 on a lark to replace the ancient copy of After Effects I occasionally used to do little animation bits. Finally escaped the wiki for a couple hours and got some chance to play with it some more:
1.2MB Ogg Theora (640×360, no sound) (download)
The particle effects are yummy… 720p also fits nicely on my screen while editing. Did a bit in Blender as well; there’s a nice tutorial on WikiBooks (damn, that brings me right back to wiki!)
Stumbled on this while searching for Theora transcoding recommendations.