I'm down to 40% battery left after over 19 hours unplugged. Throughout that time I checked Gmail and my Microsoft Exchange email intermittently, chatted on Gtalk and Google Voice intermittently, surfed on this forum several times, read RSS feeds through Newsrob, briefly checked Facebook stats, and messed with the phone's settings and customizations for a few hours. Half the time I was on wifi, the other half on 4G. I'm on wifi when I'm at home where I get mediocre to poor (but still existent) signal.
Screen is on auto brightness with auto sleep after 1 minute of no activity. Have live wallpaper running and using Launcher Pro with all Moto services deactivated (as much as possible without root).
I find the battery performance most satisfactory.