i upgraded to ML 10.8.2 yesterday, and got better battery life but my performance has gone down SIGNIFICANTLY. I cant open google chrome and itunes at the same time before it crashes, swiping to dashboard then getting stuck there and forced to shut down by power button or gets the infinite beach ball. i got the 2012 base MBP 13 a month ago so im guessing its a software problem. is anyone else experiencing this? or is it just me?