there exists a very interesting Kickstarter Project called Spriter: http://www.kickstarter.com/projects/539087245/spriter
It allows the user to create 2d-animations based on several images with keyframes and later skeletal animations and other stuff.
I have now written a first simple importer. Its is not optimized for performance, nor are all features yet implemented, but its working.
Attached is the eclipse-project and a video of the animation. I am not an artist. I will replace it as soon as I get one of the official examples.
What do you think? Could that be interesting for others, too?
Edit: I have updated the files. The video shows now a walking knight, which looks much cooler.
Edit(11.05.12): Update the files. Mainly cleaning up the source code