Has there been much effective use of WPFs "3D-centricity" or is it really just a bunch of apps using D3D to make them run faster... and an excuse to write pixelshaders?
I don't see how 3D can improve web browsing. Maybe on IM contact list is fine. The list is too long for 2D approach. The PhotoSync in 3D is cool. I am sure there are many good use of 3D, but not everything.