http://ark.intel.com/products/43560/...specifications) doesn't even give it a name
Regardless, we have basically the same graphics set since they are both Ironlake though, as stated, mine is an i7.
I wonder if it is something weird that Arch did (or didnt) do. If you can, try a live fedora 15/16 and see how it works (http://dl.fedoraproject.org/pub/alt/stage/16-Alpha.RC5/).
I haven't tried RC5 yet, but RC4 worked well (and it should have FF6).