The rooting process is not what wipes the phone - it's the process of unlocking the bootloader. Unfortunately, there's no way to root without unlocking.
Not true.. I did a "quick & easy" root on my phone (found at XDA's forums) that did not unlock the bootloader, so technically, it wasn't a complete root, but it still let me run "root only" apps.
I gave up on rooting my phone because I figured if my phone suddenly broke and needed a repair, I didn't feel like going through the hassle of unrooting.
Back to the topic at hand, I'm with everyone else with poor battery life.. After resetting to factory defaults twice (and wiping my SD partition), I still end up getting just around 8-9 hours of life before the gauge goes red..
My typical day is around 6:30am, play about 5 or 10 minutes of Words with Friends, read a few e-mails, and then turn the phone off.. Today I did that, and checked my phone at noon.. I was down to 45%.. 45% after hardly using my phone! I don't have Facebook notifications turned on, I have Sports Mobile widget running, the News & Weather widget running (updates every 3 hours), but other than that, not much else. What's weird is, some days the battery life varies so much. Let's say I don't use the phone at all from 6am on.. Sometimes I'm still at 75% by 5pm! Are you telling me that that 15 minutes of Words and browsing my e-mail caused my battery life to go down that much quicker? So unpredictable!
I also have a complicated somewhat battery-related question.. I've heard conflicting answers from "experts", but does anyone know if Live Wallpapers are running in the background while you're running other apps? And also, what about when the phone's screen is off completely? Does the OS know to turn off the Live Wallpaper? I'd love to have some cool LWs in the background but not if it really makes a big difference.