Well said JesseJ, that article is really nothing more than someone trying to get people riled up over nothing. It's a great way to point out the obvious but nothing more. Does this mean a MAC will be slower with Intel chips? Highly unlikely considering that MAC's have been losing their supposed performance advantage to PC's for quite some time now. What it will mean to MAC users is the ability to see what gaming is really supposed to be like. I'll admit that I have only spent maybe 10 hours on a MAC in my entire life, but I do know that was enough to know it's not for me.
I won't even touch the fact that the supposed "benchmark" compared a single 32-bit P4 to a Dual 64-bit MAC system. Gee, that seems like an apples to apples comparison to me. Next we'll have someone colling the Corvette slow because it can't hang with a Mclaren F1.