I'm on the tram in Oslo norway right now, and though we're not a very big city I've still seen two people with it so far. One o the tram, avidly checking out the new facebook design when it came out.
We're having a maemeetup in Oslo very soon thoiugh, so if ur close, send me a pm and you'll get to meet some more of us.

About battery life... my brother trashed his nokia 5800 music xpress at a party and I realized i suddenly had a spare battery, so now I'm allways carrying a spare charged battery around and the n900 lasts me a whole day of heavy use!