It's Day 5 since I bought my new X. For the last four days, I've had to charge the phone twice during the daytime with moderate use (I'd get 6 to 7 hours or less before hitting 15%). Today seems to be a turning point, and maybe the battery is showing it's true potential after 10 or so charges. I took my phone off the charger at 6am (14 1/2 hours since unplugged) and during the day I've sent a bunch of texts, did some web browsing (on 3G and WiFi), watched a few YouTube vids, used Yahoo and GTalk messengers to chat, browsed the Market, and made a couple brief calls. I'm holding solid at 40% battery life. Granted, this was a work day so I wasn't using the phone much at all between 8am and 5pm, but I've been on it nonstop since about four hours ago after getting home. I was loving everything about the phone except the battery life, but patience seems to pay off. Now I have ZERO complaints