Why the Nuvifone Failed
It is pretty simple. Garmin tried to sell a smartphone based on a single application. People instead purchase smartphones based on the entire ecosystem of apps available for each platform. While you can add other apps to the Nuvifone just like any other smartphone, you can more easily add a good navigation app to any other smartphone on the market. People did, and will continue to do so. Doesn’t matter how good the Nuvifone was or how good the navigation was.