Dude you don't need internet/edge/or 3g for GPS. Do you have a GPS in the car? Is it hooked up to the internet ? NO! They dont need to be.
Real GPS needs no internet or phone connection of any kind. The maps are preloaded onto the device (or can be downloaded, so they're always there), and need contact only with the GPS satellites, not anything else. Only more recently has there been this sort of "half-GPS" which consists of a combination of fewer GPS satellites and cell phone towers.
How about you both learn to read? I never said GPS required data. I said it would be pointless at this current stage because there isn't an app with pre-loaded maps available and it hasn't been clarified whether Apple will allow TomTom or Telenav to release their apps due to the fine print in the SDK. Data is required for Google maps.