The swf to xaml conversion tool now does 'bug free' timeline conversion, and it is looking a lot more hopeful for xaml and Silverlight. The last test was simple tweens with very complex objects, and it was pretty chunky. To be fair that was at the extreme end of what is out there. It was from a real world project (an educational game we are doing for Canada's Virology Lab) and did play in the swf player, but it was in a place we expected older computers to chunk without interfering with lip sync etc. The new test in this post is a much more typical character animation and it is playing *much* better. Here are the goods for your comparison shopping:

rollie.zip

If I can't get 'cache as bitmap' equivelent working, a fairly easy alternative will be to use pngs for symbols. That would be fairly painless as the tool is already generating them, and I'm pretty sure it would be fast. Given the enourmous size of xaml and xml serializaion in general, it would probably be smaller than the current markup as well : ).

Even as it stands now though, the xaml seems like it should be fast enough for most projects, and profiling should add at least some speed goodness.

All this art is by Bro' Sandy btw, the whole demo would be much less impressive with my animation, to be sure!