I've been using the stock browser because I love the interface, but have noticed quite significant battery lossage since switching from Opera Mobile...I used to be able to go a whole day with somewhat heavy usage and be at around 60% at the end of the day; now, after very minimal usage of the stock browser, after about 8 hours I only have 40% left. What browser gets the best battery life? Or rather, what browser doesn't use much juice to run?