I gave up my macbook pro around the time Lion came out. I had lion for about 1-2 months and when it was released back last year or so, I noticed it reduced my battery life. There was no change in what I was doing, I was originally using space and expose constantly, youtube, all the stuff I normally did but right after the switch to Lion there was a decrease in battery. Had nothing to do with my battery, just using more power. There were few threads back then that discussed this issue but I can't find them. Does anyone know if this issue has been addressed or ever looked into by Apple? Or is it the standard and norm now, now that Lion is mainstream?