I signed up the data service on 5/3 and in 10 days of "rarely if ever" using 3G and I'm already at 253.7MB of data usage. Those of you thinking of taking the lower priced option don't bother. I got the unlimited just in case and I'm glad I did. I have 3G on most of the time but almost always have a strong wifi signal at home except for the odd times I'm just out of the router's range. Any one else see some crazy 3G data numbers without using it a whole lot?