It would really need to be I7 at top price point as you can can get I7 laptops now round the £1500 price range.
I reckon AMD are holding it up on graphics
Intel pretty much confirmed the i5 MacBook Pro's when they leaked an advertisement earlier this year.
I'm concerned about the graphics in the new models though, I really hope that Apple doesn't go for the Intel solution even on the lowest MacBook Pro model. Although it would have no trouble playing back HD content it is slower than a discrete GPU from even 2 years ago, the 9400M in the current series would outperform it.
Online benchmarks show the Intel GMA HD outperforming the 9400M, so it's a step that I could possibly see Apple taking, especially in the MBP 13" that probably won't have discrete graphics.
Will an i5 really be notably faster than the current chips? or will they use less power?
Its liek comparing the core 2 range of deskto chips to the new "i" rannge of intel chips.
Answer is yes, they will be much faster and most efficient
Phil