2.0.2 firmware: 3g Battery life

So today, I fully charged, turned 3g on and didn't plug it in again.

Usage: 4 hours, 10 Minutes
Standby: 8 Hours, 56 Minutes

So I can use 3G for 4 hours, and then I get the 20% battery life message.

You make the decision, but being the Road warrior that I am, 4 hours just doesn't cut it.

Chime in, what are your times?

Let me know