Marvelous! I actually wanted the 8400M GS, but that was easy to find on a linked page.
It looks like it would be supported (at least nearly all extensions seem to be supported on both Linux and Windows).
I would like to confirm this, though. I know from experience that the card supports OpenGL 2 style shaders, but what extension introduces OpenGL 3 style shaders? I was under the (possibly mistaken) impression that it was the original extensions that were just updated. Would the website be reporting support for these latest versions of the extensions then?