Just an fyi for anyone considering the purchase of a 15" 2.3/8gb/256 model. If you run photoshop cs6 and decide to try the 3d optionality, your RAM will be depleted to the point where you get very large page outs, while the program appears to hang for 10-15 seconds. Kind of disappointing. The computer is going back. Wonder if Apple is having second thoughts on not allowing users to upgrade their own RAM, as I am sure my return for insufficient RAM is rather common at this point. Loved the laptop otherwise. I had no other apps open. Has anyone else had this experience? Wondering how the computer would have reacted had it had 16GB RAM.