After several issues and damage inflicted on my MBP by AppleCare during repairs, they are sending me a new one. I just have a few questions/concerns about what I was told about the new unit. My original MBP is the first model of the unibody 15" with the express slot and was a 2.53GHz. Bought November 2009. The new MBP is coming with the 2.4GHz i5, which they are saying is faster than the 2.53GHz that I had. Only the number is different is 2.4 vs 2.53. Now I am not complaining at all, free, new, better unit - I'll take it! Just curious if the information I was given has any merit. Everything else looks to be identical or better. It was just throwing me off that I paid $1999 for the original MBP and instead of swapping for the same unit at the same price, they are going by spec. So I am just curious how much faster the new 2.4GHz i5 will be over the older 2.53GHz? Thanks!