I bought an N900 because I was fed up with devices that wouldn't run the way I wanted.
I looked around a bit: Symbian, iPhoneOS, Android all had their pros and cons.
The openness...
Just a few things and most could be fixed in software:
- no CALDAV: sync is so 1990, you're always out of sync!
- no general portrait mode
- mail client could be easier to use
- 256M root fs:...