Chances are they'll get it.

Though, it will be interesting to see how people will market it in store:

"Hey Mr. Smith! Remember last year when I talked you into coming over from Verizon to ATT to get our iphone because all they had was that Blackberry I told you was a piece of crap? Well, it turns out it was so popular that my company is offering it too! Would you be interested in an early upgrade so you can get the phone you wanted originally on my network?"

Then again, the same thing will be repeated when Verizon gets the iphone, well almost the same thing. Most of the people I know who actively "bash" the iphone to make sales go after the network more than the device.. but we'll see.