I've been trying out the WinFX betas, and have been very impressed with all the effects made available by WPF. I've also experimented with the nvidia drivers to see what a difference having DX9 hardware has to the speed of WPF content rendering. In software mode, it's pretty slow, but on hardware, its extremely fast, and this is with a GF FX5200.

My question is, really one out of pure interest..

Which parts of WPF are acellerated by DX9 hardware?
The only info i have is that DX10 (WGF 2.0) will put the whole text rendering pipeline into hardware.