I got the one X just after launch day. From day 1, I installed juice defender and the battery life seems to be ok. it lasts me a day before i start getting prompted to charge. Which i wouldn't say is bad, the galaxy S had to be charged every night as did the iphone. considering the bigger screen size and resolution, SLCD being more power hungry than superAMOLED and the retina display I'd say the battery life is on par. But since there is no way to replace the battery easily, when the battery starts to get weaker in 12-18months then its going to be an issue.
Its a good phone, its android, some lags and random restarts are expected but the UI is fairly decent, its minimal compared to the desire HDs and touchwiz. The screen is big, but once you get use to it, you'll hate looking at smaller screens. Its a shame that the phone only comes with 25gb free dropbox storage, as theres no micro-sd slot it would have been nice if htc offered 50gb as samsung has just announced. Syncing pictures directly to dropbox is a nice touch, great for backing up pics which out having to actually hook my phone up to the computer.
On a side note, people power means something. Clearly there are flaws in the handset which should have been addressed prior to mass market release. the poor battery being one of them (although, personally i think the bettery is ok, not perfect), HTC must have realised that an 1800mAh battery would not support the demands of the one X, they sould just develop a 2100mAh battery (R&D get paid for a reason) and offer customers the option to send their devices in and have the bettery replaced to a more powerful one instead.
Wouldn't be surprised if HTC decide to announce a newer phone which very very similar specs but offer a more powerful battery instead. - That would be dreadful for all the one x customers.
