There seems to be quite a hype caused by the fact that the IE9 preview builds use Direct2D to accelerated HTML/SVG/Canvas rendering.
I always wonder why people didn't hype Firefox the same way, when FireFox-2.0 was released in Oct. 2006 it did exactly the same thing - using Cairo on top of XRender.
That was 4 years before Microsoft will release IE9 :P
FireFox-3.6 does even well on the IE9 canvas/svg demos:
(Granted, I had to scale down the background image, my weak intel-IGP has limited texture size of 2048x2048px)
Its also a good demonstration why the usual QT/KDE-Statement "we won't work on our XRender backend, the raster engine is faster anyway" isn't that clever.