Did AT&T break a contract clause with Apple regarding all you can consume data?
If so it's possible that the Verizon iDevice is closer than ever.

The website "Boy Genius Report" which generally gets things right is reporting that Verizon may be testing the iPad on it's network, which would coincide with next weeks WWDC conference in which Steve Jobs may announce carrier agreements to the already unlocked device which right now runs only on GSM networks in north america.

With the announcement of the end of "all you can eat" data plans for the iPad from AT&T earlier today this is an interesting development.

From BGR website:

“According to a highly placed source of ours, Verizon Wireless is currently testing Apple iPad devices on their network.” The guinea pig model, if you will, is a CDMA-compatible device. “It would appear," adds BGR, "like the gates of heaven have opened, as we’re probably going to see not only an iPhone but also iPad on Verizon very soon, huh?”

However don't hold your breath on the iPhone jumping over to Verizon any time soon.
Chances are better than ever though as the possibility that AT&T BROKE an agreement with apple regarding the $30 unlimited data plans for iPad by discontinuing the plan means that Apple could be in the clear to take the iPhone and iPad anywhere they wish.