Hmm, I believe that if apple takes the right step in this direction, they can pull in a whole slew of the market that hadn't considered them prior.
Mac is known for being overpriced, and underpowered. Now a days paying 2k and getting a core duo and a 9600m gt makes some people laugh. By keeping the price the same, but throwing in an i5, a perhaps a 5 series ATI, things could change.
They would no longer be overpriced for the power (at least noticeably) and the gaming market could finally seep over.
I am at work right now, and therefore I use a 2.8 duo 9600m gt 512 macbook pro. I have been testing it out with Mw2 and HL2, Wolfenstein and others. It handles them well enough, (though you cant max mw2) but the future is going to start seriously rocking a 9600m.
crysis is damn near un doable unless you run 1024 on medium settings.
The biggest factor will be, if they up the resolution to be in the range of an Envy (1920x1080)
Mw2 on 1440x900 runs ok, but no way would it run at native with 1080. Nor HL2 for that matter.
5 Series ATI would be good in so many respects.
1. Bring the Gaming Market
2. More bang for you Buck
3. PC- ers (like me

will stop heckling you for your 4 year old gpu.
4. etc etc
PS this is my first post, but i felt it important enough to make an account and comment. I hope to make the transition to mac for my home laptop. But if they don't make this refresh worth it (or at all) ill be sticking with a PC and i feel a lot of users feel the same.