Anyone else troubled by iPhone 3G battery life?

[M0bile]

I am a little concerned, but 5 hours internet seems like an awful lot. I'm more concerned with music life.
I need my iPhone to do this each day of its life:
1 hr standby
6 hr 30min music playback with 10 mins internet /texting every hour
20 min internet/games
9 hr standby / with miniumum text/games
7 hour charge
repeat

And thats on a quiet day when I don't to town and get lost or make a call.

Am I dreaming? Please tell me I'm not! If I can't listen to that much music I'll die at work!

Why not just bring your power plug and USB cord and charge at work?

 

[Merlosso]

I'm not concerned about the battery. I have a wall charger at work, I have a USB cable at my desk at home, and I plan to use the included wall charger in my bedroom.