One of the first things I looked for was animation along a path, I found some demos for WPF that did this and tried to do them in Silverlight. Fell at the first hurdle. Silverlight does not have this functionality, yet at least. Why Silverlight does not have this in Alpha or beta, along with some rudimentary controls, auto-scaling with that view window thing I do not know. But path animation missing? if your taking on flash you’d better get this sorted.
But for now I found this, Jaime Rodriguez has a tool to create motion path animations, well almost it creates key frames for the animation based on an equivalent WPF project that you can then cut and paste the xaml.
So for now this is great but MS hurry up and get some more features in, in under a 100k please.
Here is the link