mine were
Nokia N72(got it 6years back)
Nokia N70(sold N72 and got it 5years back)
Nokia N900*-using it for the past 3 years(i still have my N70 though)

what i feel is"N900 IS NOT A SMARTPHONE..ITS A MINI LAP..IF N900 IS YOUR FIRST SMARTPHONE THEN IT WILL BE YOUR LAST" and its my last phone.. no plans yet to change any phone