About the speed: how can these laptops be getting twice the speed, twice the graphics performance, etc ? Didn't the previous model already had the i5 and i7?
Yes, but it's a good buzzword bingo addition. Ok, yes, it's overrated, and Apple wants you to buy a new one. The main point was the new Sandy Bridge processors. Which are supposedly lots faster (and I have an original i7 in my Lenovo which is a monster, can't imagine how fast it would be)