Apple ipod

The GSP-Base does not work?

Hello everyone, my husband and I have a TomTom GPS receiver. But the thing is, it will not work on the base (or in Stewart, where it is today, nor in Benning, where he has been for Basic / AIT). But his friends that he can use the iPhone GPS and get perfect coverage. If you buy / add-on something special or simply does not work alone? I just upgraded a few days ago. Thanks in advance.

The iPhone can use a version of the GPS cell phone towers. GPS satellite consumers may get stuck, for security reasons.

First Look: TomTom GPS app for iPhone 3G/3GS(USA/Canada)