I was planning on getting the 32GB wi-fi only, but I called my local Walmart on Saturday morning to see if they'd sold out. They hadn't, and they had two 64GB 3G's left, one Verizon and one AT&T. I decided to take the plunge and get the big boy. The clerk told me that Walmart received a shipment of 23 units of varying specs. It's somewhat paradoxical that people in Rhode Island and New York City cannot find an iPad anywhere, but I strolled in the next morning to a Walmart in small town in the rural south and found one. The clerk also said that if I bought the iPad, I had 15 days to return it, so in the event that they get a new shipment and I find that I don't want the extra space or the 3G radio, I could return it and get the cheaper one. Although I never found the 3G plan very appealing, I suspect it might be useful to have the GPS unit constantly sending location information. If I cache some map information, or get a US map application, would I be able to track my location on a map, even without a 3G internet account?