I agree with Technomadia's thoughts on the subject. I have VZW EVDO service (2 accounts), and think it is a nice perk, but not sure that I will ever use it. As I mentioned in the news posting I made, I am not one to take my laptop down to the coffee shop to surf or work. Since I have EVDO service, I can do that from anywhere, so I am not in the habit of doing that.
I could see taking advantage of it if I had to do some big downloads and I was knocking on the door of my limit (although I don't have the 5gb limit - speaking in theory). Maybe an OS upgrade or some other large app upgrade. Would be nice to have a cup of coffee and drag down everyone else's connection for a bit ;)
Like above, I too think it is a nice thing to offer, and think that it will be very useful to more metropolitan users that are doing that sort of thing.
--kev