Has anyone had luck running 10.8 on older hardware? How does it compare with 10.7? I have an older MBP, early 2008 model, which is just over the cutoff for 10.8 support (since it runs "late 2007 or later" for MPBs). It has 4GB ram. I'm wondering if I'd be better off sticking with 10.7, performance wise, memory wise, etc. Would be curious to hear other's experiences with 10.8 on similar machines.