This is truely excellent, really good to see this kind of thing on Channel 9.
With regards to the text rendering, did any of the DX10 specific optimizations ever arise? A long time ago, in the Avalon days, i remember there was talk of moving the text path completely to hardware in DX10 class video cards, as opposed to the mixed hardware cleartype and software glyph composition / alpha blending in DX9 paths?