First off, I purposely killed my battery. I bought the phone and that night (June 5th) I charged it to 100%. I have since let it dwindle with periodic use and only marginal charging from when I copy files to the SD card via USB. So it finally dwindled down to 20% today and I decided to kill it. I busted out android-wifi-tether and played YouTube and refreshed web pages from my iPhone on its wifi hotspot, and in no time got it down to 5%. I kept playing with it and finally it died. w00t! Mission accomplished! So I plugged it in and began charging it. I waited about 10 mins and then powered it on. It booted up and immediately I noticed the carbon wallpaper. No more live wallpaper. I set live wallpaper and it works but I wonder why it showed me what looks like a carbon wallpaper (a bunch of gray pixels tiled all over). I wonder if Android disabled live wallpapers in a fleeting attempt to conserve battery. Any ideas???? BTW, I'm still VERY pleased with the battery and in about 45 minutes of USB (not wall) charging and idling it's already up to 20%! That's pretty quick! More info: Another 50 mins another 20% charge. So I think it charges ~20% every ~60 mins it seems. So I guess 10% every 30 mins or so.. Good to know!