I don't have the problems you speak of browsing on my N800... but it took 10 months for the right combination of user tweaks and OS for that to be said.

I also use a WinMo device running 2003 in my work vehicle and the browser just plain sucks... Not to mention I don't dare disconnect it from the charger for any length of time or risk loosing everything stored in RAM... Where it shines over the N800 though is the third party apps. TomTom navigator, my weather app, and assorted Today screen widgets run continuously on it. However, that took almost 3 years to sort out.

Now that I have Wayfinder up on OS2008 and can now also connect through my phone, I use the N800 exclusively during my personal time. I can throw the thing in my jacket pocket on Friday night and not have to worry about charging again until Sunday evening. I can also carry 16 gigs of USB accessible mass storage on the dang thing.