I had this decision too.(Let me tell you from the heart) it all comes down to personal taste. I've had them all... if u want something fresh
this may be your best bet.

1.What you want
2.Yup
3.I hope at least Google Maps (thats my prayer)
4.That unknown (they haven't been any announcements)
5.The N900 is cheaper with out a plan

hope i helped