From the article in the link:
Navigation Capabilities on All MyFord Touch Cars - But It Ships Disabled
Ford explains: When you take delivery of a Ford with MyFord Touch or Lincoln with MyLincoln Touch, you get a vehicle with an 8-inch touchscreen and you also get the navigation application embedded in the car. But it's no good without the navigation SD card, for which you pay $795, and then Ford activates the car and enables navigation. That apparently means you can choose to have factory onboard navigation the day you take delivery. Or, later on, you can choose between factory navigation or a third-party portable GPS system that will be clunky, take up space on the windshield, and cost half what Ford charges.
Looks like according to the article it can be dealer added at a later date. Has anyone tried to have it dealer installed?