Good Deal?: iPad 3G 64GB for $465

It's the original iPad, but the 64GB 3G version. From what I remember, that was over $800 when it came out. So all that storage and 3G capabilities for less than the cheapest iPad sounds pretty good. Are these upgradeable to the latest version of iOS? Apple_ipad_64gb_with_wi-fi___3grw4detail_medium