I've seen Steve on stage mention the fact that the previous management (this was when Steve had just come back, and boasted about the original iMac -Rev A- had such a gr8 processor: the G3) "somehow" didn't like games. And he followd up with "We love games!!!"
Titles as Unreal, Tomb Raider, etc. came out for the Mac back then. Very cool... too bad the iMac had such bad grfx onboard though, these games weren't playable even at low settings... even the B&W G3 had that crappy ATi Rage 128 (16 MB VRAM).... we had to wait for the über gr8 3Dfx Voodoo 5 5500 PCI for Mac!
With the demo of OpenGL on Mac OS X, Mr. P. Schiller was allowed to demo Quake 3 Arena!... too bad it crashed though...
And later @ MacWorld Tokyo where nVidia launched the GeForce 3, Steve let dear John Carmack on stage to show off a very early sneak preview of Doom 3!
However.... the iMac is to me evidence that Apple simply don't take games seriously, even if they do an occasional show-off.
The iMac has NEVER had even a decent 3D grfx card, except the current highest end one.
Not many Mac users who like to game will like to pay the price of getting a Mac Pro with a good gfrx card, or get a second computer - a gaming PC - just for having the occasional laugh during racing in GRiD or shooting up baddies in Far Cry 2.
However this time highest-end iMac does get you the option we have been waiting for since 1998: and iMac with good 3d grfx!
So, maybe it is shifting a bit...