I just read this on QT3 boards, and here's the direct link to the article: http://www.gameinformer.com/News/Story/200406/N04.0604.1354.39666.htm
Aaaand, here's the particularly crucial quote:
Battery life is one of these things where if you state a number then everybody's satisfied. The only problem, of course, is it never matches what you state. But if you don't state a number then it's like, "What's the battery life?" So it's a continuous Catch-22. And that's especially prevalent with the PlayStation Portable because it plays various entertainment content. Again, if you're just listening to music with no visuals at all then it should last, as I said yesterday, about eight to ten hours just like an iPod would. If you are playing a game that is consistently cycling through and putting the CPU to good use, yeah, battery life is going to be shorter. Maybe about two and a half, three hours. That's why putting the range in there... because it's more difficult because it's got a wide range of applications to really pinpoint to say, "It's eight hours." Because it could be longer, or it could be shorter, and by dramatic margins up or down.
Ookay. To put it mildly, that's a bit
short for my taste. In fact, I'm a bit disappointed. I bet there's going to be an add-on adapter that'll cost $30, and adds another 5 hours on there.
Sigh. Well, it's not like I was going to purchase it day 1. I'll wait 'till it gets to $150-$100 range. Nevertheless, I'd prefer it to have a bit more of a kick to it.