Sometimes after an evening of full charge, I unplug it and leave the phone on overnight, and in the morning, I'll find it went from 100% to 77%. The culprit, once again, phone idle and cell standby. This is very disappointing for not even 'using' the phone. Before I let it be, I make sure to Task Kill anything that isn't necessary (it leaves gmail, battstatt, no lock, kik messenger, android agenda widget - which I've set to only refresh once every 12 hours - and SMS messaging). Everything else is killed off. Beauty Weather widget only updates at intervals of 16 hours (the longest setting they have), and refreshes only after I unlock my device. What could be using so much "phone idle" and "Cell standby"? If I turn off 3G over night, will this make the Cell Standby eat up less juice?