This may well annoy some of you. Got my Desire yesterday, charged it at work up to 100% and had it plugged it in at home playing with apps etc. over wifi all night. Unplugged it at midnight ish, played around with some games and browsing in bed and went to sleep.
Battery was at 84% this morning, pretty worrying I thought its just been sat there while I sleep! Anyway, its now down to 7% after showing it off at work all day, a couple phone calls maybe 15 texts, some google goggles action and 2 hours of mp3 down the gym. I'm actually trying to drain it now so I can do a full 0-100% charge!
Uptime of 25 hours, 32% Cell standby. My work is really random with signal with gprs one one side of my desk, HSDPA the other so it must not enjoy this much.