Originally Posted by robhon
This is going to be interesting. So, are we going to be able to buy an iPhone at an Apple store? Or, do we have to go to an AT&T store? If we already are signed up with Cingular, are we going to be able to get a deal with a new contract through the Apple Store? What if we buy through AT&T, are we going to be able to get Apple Care for our new iPhone?
Hmmm, lots of unanswered questions....

I'll give those a stab:
1 & 2. iPhone will be on sale at Apple and Cingular/AT&T stores.
3. Plans should be available through both retailers as well, although buying any new phone may reset your contract date and it has yet to be confirmed that there will be any iPhone discount with a new plan (rumors abound).
4. There will be available insurance. My guess is that it will be a reworked AppleCare product. Worst case, you can buy separate 3rd party insurance. Murmurings arer that tech support will be housed by AT&T.
Updated info welcome, natch.
-K