I've posted an updated sample of my primitive 3D animation tool.  It is basically the same as for the WinHec build, although instead of using KeyFrames, I'm using the GetAnimations collection hanging of both the ScaleTransform3D and TranslateTransform3D to animate the dependency properties, ScaleVectorProperty and OffsetProperty, respectively.  Very simple...very clean.  Avalon programming so seductive.