I just picked up a an iPad 2 wifi.. And let just say, it's everything I wanted and more.. A perfect addition to my Air. What I'm wondering is should I consider the 3G model (as I'm within the store return policy). More specifically: - Does the 3G version have GPS? -- if so, can I use Maps to plot destinations and get directions on the go without activating 3G service? - Provided I have location services on, will the - find my iPhone / iPad app work (even if it's not connected to Wifi or activating the 3G service)? - Is activating the 3G service month to month without a contract? - - what's the monthly cost? - Are there any other fringe benefits to the 3G equipped iPads? Thanks!