Asustek confirmed Monday that the Garmin-ASUS joint venture it entered into with GPS giant Garmin two years ago will end early next year. The confirmation comes following last week’s report that the unsuccessful venture would come to an end when the companies’ deal expires in January 2011. With the popularity of navigation apps for smartphones exploding over the past few years, the joint venture seemingly started as an experiment that posed a single question: are consumers interested in a product that is a personal navigation device first and a smartphone second? The answer, at least in this case, is no. Further details on the split will be provided Tuesday, though initial reports suggest that the two companies will continue to work together in some capacity after their current deal terminates.