The 0.3 release tree has been mostly about building up compatibility with Google's App Engine.
Because the environment that Google exposes to the developer is quite restricted (for obvious reasons!) we thought it best if we get the entire PyAMF test suite (up to 430 individual tests and counting!) running.
We have built a simple web app that runs the PyAMF test suite from within the Google App Engine. Its a work in progress and isn't planning on winning any beauty contests, but works nicely.