I'm disappointed they hooked up with Cingular again.
Cingular's got the largest customer base--it's a no-brainer. That said, they'll definitely offer deals with other companies. First, they'll have to; second, the on-screen display specifically lists which carrier you're using, which implies that multiple carriers are supported. If you don't want to wait, Cingular lets you unlock phones if you can prove that you paid full retail for it.
As a T-Mobile user, I can't wait to pick one of these up.
OK, I give up, why?
Why does everyone get so down on Cingular?