I agree with Newtype. Like the iPhone, there's a lot of things that are going into that N95 which they really need to make sure is functioning properly before launch. Granted, it still won't be perfect at launch, it'll still be usably stable for mass production.
The same goes for Nokia not releasing phones with UMTS 850/1900at 3GSM. People expect it to be just that easy. You think Cingular is just going to roll over and say "Oh, okay." if they were to do that? Of course not. That's why we haven't seen the N75 yet and why they haven't even tried to get another one out. Cingular cried about the N80, they're crying about the N75, and they'd cry with any other attempts Nokia might suggest for US 3G. We may be looking at T-Mobile's partnership with Nokia for UMTS 1700 handsets as our only hope.
Sorry for the rant, but I've been thinking about it all day.