So i thought i would drop in my two cents...
When I bought by 3GS, i did not think the battery was any worse or better than the 3G. However, having read through many threads I did a test today and it seems my battery may be indeed a little weak. I am very aware that Push, even on one account, is a huge battery suck (and as a side note, i am not sure why as BB's have this feature and it does not seem to have the same kind of impact on/off).
I fully charged my phone and turned off all services except for location and 3G. Push was disabled and my two email accounts were set to fetch every 15 mins. I took the phone off the charger at 10am this morning.
It is now at 37% with the following stats:
Usage: 2H 34Mins
Standby: 9H 1Mins
Call Time: 17 Mins
Data
Sent: 670KB
Rece: 10MB
These stats include listening to my ipod for 30 mins, listening to AOL radio for 15 mins, playing tiger woods for 20 mins, and using G-map GPS for a 1 hour roadtrip. The rest is some light surfing and other stuff.
Thoughts? Seems pretty bad to me.