I am considering buying an iPhone 4 with VZ. However, there is a lot of talk about the iPhone 5 coming out. Usually I would wait for the iPhone 5, but isn't the unlimited data with VZ supposed to end soon? How out-dated is the iPhone 4? I have an env3 right now that randomly shuts off in my pocket ( I'm on my second env - they certainly are not reliable), so anything seems like an upgrade. Basically what I'm asking is, do you think the unlimited data is worth the possibility of not upgrading to an iPhone 5?