I have been researching Ipad data plans at length for my Ipad2 3G. What I have found is that it looks like the big three all have fairly similar plans where they offer low data with high overage charge and high data plan (more expensive) with a lower overage charge. The best deal I've found so far is Virgin Mobile in that it is $5 for the SIM and they have a 500M for $20 but where their plan seems better is if you exceed the 500, they just put you on the 5G plan for $35 for that month. Also has unlimited wifi at starbucks (if wifi isn't free for everyone at starbucks now). Has anyone found a better plan? I am looking to sign up on their soon if I don't find a better deal.