Telerik has created a set of Silverlight controls. They are always on top of new technology from Microsoft and sometimes it seems like they work there. Here is a sample room editor that has must a sprinkle of pseudo 3d. One interesting thing about Silverlight is that MS AJAX will be specifically written to work with it. I am sure there will be other packages but it appears like Microsoft is setting out the developer workflow quickly.
At this point Silverlight doesn’t compare much to Flash and has a long way to go. The WPF libraries are excellent though and will get lots of following. The Microsoft developer community is a bit like the Apple consumer in that they pretty much buy into anything that they are fed, so it will have some legs.
Silverlight, the cross platform version of WPF, is great (more on this later after I have delved in further) but it is no Flash. However, it is eons ahead of their last attempt in Liquid Motion.
On Coding Silverlight vs. Flash9/AS3