Hi.. my first experience with S2 has not been great battery wise. I've found the battery life to be horrible. Even with all the battery saving features i.e. static background, widgets off, etc. etc., I have to charge the device twice a day. Its practically useless. I was thinking maybe there's some 3rd party ROM out there which would improve the battery life? I'm currently running stock 2.3.4. Any suggestions would be welcome..