AT&T is changing their data plans for mobile devices like the Blackberry and the iPhone. Before, you could get unlimited data usage for $40. Now, you will have a choice similar to an broadband air card. You can pay $25 for 2GB of data or $15 for 200MB each month. I’m not sure this is a good idea. Since most people use these for social networking and Youtube, I think keeping under the 2GB limit is going to be tough for some people.