No GPS Chip?

So............. I contacted a Apple rep to find out if I wanted to upgrade or not and come to find out with a ton of pulling of info she told me that there is no GPS chip and that the GPS is nothing more then a software update in which we all will get including the old IPhones. So really the only update for the new 3G is just that.... 3G. That's it. Now maybe she did not know what she was talking about but thats what she told me.

Anyone else confirm?