Thanks for this thread and the posts...very informative. Had my Droid for just a few days, have seen numerous articles out there that said ATK was a must-have. I installed it and was closing all these things I had no idea were even opened. At the same time...my email account started crashing and notifications stopped happening, along with a few other buggy things.
So...I had ATK installed but really didn't know what I was doing using it and may have messed up some functionality.
My battery life has been improving anyway with the first few days of charge/discharge cycles and little tweaks as I learn the device better - biggest one I think was dimming the display pretty low which works just fine for me but is a lot less bright than what it was doing on its own. I have uninstalled ATK and will see what happens.