Some cool things coming in WPF 3.5. My favorite is the baked-in support for controls on 3d surfaces. There was an add-in for this for previous versions (which worked but was not completely integrated), but this is great news for future applications!

I still have my Kitchen PC project on the back burner (I keep waffling between working on that and working on another Silverlight project - both interest me equally), but this functionality will really help make things ahem sizzle [:D] (hmm, "baked", "back burner" and "sizzle" all without even trying. I guess the Kitchen PC is subliminally calling to me [pi])