I have hardware version 3 and am still having battery issues. I'm wondering what I might experience if I go to the sprint store and swap it out for a new one. Is there a version 4? I have also read things on here to the effect of newer ones seem to have a worse screen. Before I do that though I will do a factory restore because some people have said that has made the difference for them. I'm wondering if those people also did the OTA updates or whether they didn't to get better performance. Another tangent: when doing GSM->CDMA, I'm noticing the following: After going through the process, when i click the 'back' button, it brings me to a dark screen and nothing happens, so I have to hit 'home' to get out. Are you people hitting 'home' while in the settings screen after doing the process, or hitting 'back' then 'home' ? Maybe thats a nonissue but am curious.