There is no room for a dedicated GPU in the 13 inch model, especially if you want core i processors.
The only hope for that is AMD.
So how did Sony fit a dedicated GPU into the Vaio Z? That's ********, sorry.
On the whole, I think the white MB is currently the odd one out. It's supposed to be the entry to the Macintosh line-up, yet for the same price you can get a much sleeker and more interesting MBA and for just a tiny amount more you can get an MBP. They should either lower the MB's price to 899 or even 799 just to make a point about it being an entry-level machine, or they should axe it.
Personally, I really don't see the point of the 13-inch "pro", but it's apparently very popular. It could theoretically be an amazing machine (think Vaio Z) if they ditch the ODD, drastically increase screen resolution, give it an i5+decent GPU and go for hybrid HDD+SSD-storage. As it stands, though, the 13-incher makes a mockery of the "pro" moniker (not that the 15-inchers are that much better - 330M, seriously?)