Well mine arrived yesterday, was scheduled for 3 - 4 November..
First Impressions.....
The build quality is amazing, really impressed by it.
The keys are really nice to type on although grease prints do show up quite a lot and thats even if I've just washed my hands..
The new trackpad is really good aswell, although you have to press it harder towards the top of the pad, which isn't a major because you can still use your thumb for the clock in OSX. In windows this is a different story as 2 fingers on the pad moves the cursor from where it originally was, which I can see being a pain.
Performance wise I haven't really had a chance to test it out yet as I have been swapping the hard drive over, re-installing OSX and transferring all my files and apps over from my other macbook pro.. I'll install a few games later on and let you know how it handles, although I really have dawn of war and medieval total war at the moment.
Here's some pics of my old and new pro's together. Sorry about the quality, I dont know why they have come out so grainy, I was using my cannon Ixus 75. :S