Plenty of storage (32GB + up to 64GB cards)
endless ways of customization (system, appearance, O/C)
skype, msn, etc etc.. the whole deal
dual speakers
irda / bluetooth / wifi / gps
fm transmitter
fm radio
notification led
quad boot
tv-out
virtual mouse mode on the browser
fantastic microB browser with flash 10
a good carl zeiss camera with dual led flash and great autofocus
numerous videogame emulators (the qwerty makes the difference here!!)
great music player via headphones
camera lens cover & kickstand
qwerty with plenty of keyboard shortcuts (pc-like)
x-terminal
and last but not least:
the CSSU project that keeps updating the phone with new features
and .... Maemo5 which has a PC-like multitasking.
greatest multitasking I've ever seen in a pocketable device.


so yeah, the N900 is a great device even now.