How so? For any T-Mobile user, it doesn't matter anyway, since we won't be seeing the 1700 UMTS operational any time soon.
That's the same as saying we shouldn't buy the N80 because we don't have 2100 UMTS in the states. The phone still works, just not to its fullest potential. And where are the plans to see an s60 on T-Mobile's 1700 UMTS anyway?
That being said, the phone doesn't have any features other than the UMTS for Cingular that would make it of a higher value than what's on the market now if it's just going to be used for GSM.
This phone was ANNOUNCED with 1900 UMTS. How many people have to tell you that?
Edit: Oh, let me just add this.