As a counter-post, my days here are numbered, going to order a Z3 compact....

Yes, the n900 keyboard is great, but...
- speed: checking something on a website quickly is not possible. The world moved on and has instant access
- screensize: coming from an n810, I was already pissed that the n900 was smaller, so time for a more sane screen size on a smartphone.
- battery life: having my 3rd battery in there now, it normally lasts the whole day, unless it starts acting up and starts draining it in half a day. More than a day is possible by not using it (what's the point)
- camera: never been impressed with it, missed some important events due to the camera app taking 10+ seconds to start, video sometimes consists of the first 5 seconds frozen image...
- wifi: never been able to share connection over wifi, always ended up locking the whole phone up

This is with latest CSSU thumb testing

Not decided what I will do with my n900 (I still have the n810 in mint condition too)