So I read on Apple.com that "Every new MacBook Pro features an advanced built-in battery that lasts up to 7 hours (8 hours on the 17-inch MacBook Pro) on a single charge." yet mine lasted 3 hours and 30 something minutes. I was on iChat, Tweetie(twitter client), iTunes was open but not in use, and on omgpop.com playing small flash games. Keyboard backlight COMPLETELY turned down but the screen brightness all the way up. Is there something im supposed to do to make my macbook last that long? Any battery saving tips? Does anybody's Macbook Pro battery last 7 hours?