I finally tried Juicedefender out of sheer desperation to get more battery life out of my Optimus. It works! I have it in default mode and from 5AM this AM to now, 1:30, I am still at 82% battery life - that's 8.5 hours and yes I've been using the phone off and on all day. This time yesterday, before trying this program I was at about 28% and looking for a charger. It really is a small miracle. I guess what it does is turn off your 3g and wifi radio when your screen goes blank. The only down side I see is now I will not be able to receive VOIP calls using Juicedefender but I can deal with that for now. Just had to mention this app as in one day I went from wanting to throw my phone up against a concrete wall to loving it!