Cool...well after putting my phone through it's paces, I get about 2 days out of it. I'm talking about calls, music and a bit of the net (wi-fi). I do find that wi-fi kills the battery. I don't go all crazy with it, as I don't find myself playing with it every 2 seconds so that's how I got it to last 3 days...
I noticed you do get some more time in standby mode...