Back to VCACCESS, The way it was explained to me was that there is no card, The phone acts as your modem hooking you up to the internet. There are no charges by the minute other than using your minutes up.
VCACCESS can use any internet enabled device to connect to the internet. Some cell phones with a patch cord qualify. The aircard is another one. I tried just connecting the cell phone. Speed was terrible and service was unreliable. The aircard in the same area is far better and much faster.
The problem with Wifi is that more and more people are starting to secure thier networks. Every now and then I can find an unsecure network on a back road or a hotel parking lot, but I sure wouldn't rely on it for an internet connection. I read somewhere that some major metro areas are putting in free city wide WiFi. If you happen to be near on of these citys, I guess you'de be in good shape. Maybe it wasn't free. Could be like the airports where you have to pay for a block of internet time with a CC#. Either way, it's not a go anywhere internet solution.