I"m still using my n900 as main and only phone. It's my second n900, broke the usb of the first one, keep it fore spare parts in case. A little bit slow some times (I hate to have to wait for the camera to start....), but all the other aspects are so nice, and I love to impress people with hardware stuff that are more or less usefull but make people say whaooo:
tv out,
tv b-gone
fm transmitter
...