Same here disabled gps, most widgets except foreca weather @ 4 hour interval updates. I do not use wifi, only gprs internet access. Brightness down to 2/5 and only have 3 screens active.

I can get close to 2 days like this. I noticed however what really cuts down on battery life is leaving a messenger such as pidgin running via edge. It really kills your battery in only a few hours standby. I was hoping to get it to last a day as I like being able to keep in touch with people via msn.