The Verizon person I talked to said that they plan on keeping the $30 unlimited because it helps bring customers to their company because it is unlimited.
I am up for an upgrade Feb 20th and have a Blackberry but not so sure about the iPhone. If I switch to it I will wait a few months so all the little kinks get worked out. It always seems that when Apple releases a new product the first month or so there are problems that make people mad, so I figured I would just wait so I don't have to deal with it.