im getting from 25 to 30 with normal use -some videos .texting Lots of it
some calls i have 4g off since its not that great @ the moment - its good wen u can actually get a signal
gps i have off .. really why do u want gps on unless u are using maps or what not i have sync on for facebook and weather but updates every 4 hrs but thats not a big deal since u can just click the refresh button on your own i have sync off for stock and news ..i was also getting upset on the life of the battery it would die out like you guys say in 4-6hrs while in standby but do some tweaking and itll be great ..dont be lazy guys it only takes a few seconds
by the way i am fully rooted and i am using atk