I have the following:

Recorder
Hermes
Quik
Bounce
Sheet to go
Slideshow To Go
Word To Go
Mauku
iNES
VGB
VGBA
eCoach
Gonvert
ATI85
Mirror
FM Radio
MasterGear
Xournal
Location Test
Crash Reporter

On Desktop, there are the following that needs Web connection:
Facebook widget
RSS widget

I have the device for the 4th day now.
1st day 18 hours of usage - a lot of mocking about, installing different apps and setting up stuff, merging contacts and some running some GPS tests
2nd day 24 hours of usage
3rd day 24 hours of usage

I can easily last a day without needing a charge on medium usage.
My device is always hooked to the Web either by Wifi at home or 3G when I'm on the road.

I have a habit of closing running apps that I don't need. I never have more than 3 apps running simultaneously in standby.

My device is UK CV running 1.2009.42-11.203.2

As for the Wifi router, I'm using the O2 Wireless Box III router which is essentially the Thomson TG585N