The svn repository for Avatar Core has been updated with the 0.2.1 changes. There shouldn't be anything broken, per se, in the current 0.2.0 download, so you can continue to use it for testing purposes. That download will get updated for the next release.
My Avatar Editor with the framework to see 1) if its possible, and 2) if it's easy, to moderately easy to use. Any problems found in that attempt will be fixed for that build.
If anyone has any bugs to report or feature requests, now's the time to do it. (And doing so through the blog is fine for now.)