Speculation that Verizon would offer new iPhone owners an unlimited data plan has been confirmed. The Wall Street Journal has reported that Verizon's COO, Lowell McAdam, has confirmed Verizon's plan to offer iPhone customers unlimited data for $30 per month. McAdam stated plainly that he wasn't going to "shoot [himself] in the foot" by putting up a roadblock to customers wanting to switch from AT&T. This was reported a few weeks ago, as well but has only now been officially confirmed by Verizon.
AT&T, which previously offered unlimited data to its iPhone customers, stopped doing so last year. While existing iPhone subscribers have been able to keep their unlimited data plans, new iPhone subscribers have to choose between two data plans with set usage limits.
It is important to note that this offering from Verizon is a temporary one. Speaking later this morning, McAdam indicated that Verizon will eliminate the unlimited iPhone data plan and move to a model similar to AT&T's data plans. One can only assume that those who get on board early will be grandfathered in to the unlimited data plans, lest Verizon be accused of bait and switch.
So, if you're planning on getting an iPhone 4 on Verizon and expect to use a lot of bandwidth, you might want to jump while the jumping's good.