I need to put a bigger SSD in my MBP right now but want it to be compatible with the next generation of MBPs. Anyone any ideas on whether I'm increasing my chances of compatibility buying an ultra thin 7mm (Crucial 512 M4) or should I go for the normal size one? Also, any thoughts on any other differences between the thin ones and the 'fat' ones - the thin ones are £20 cheaper which worries me a little!