Bevo I have given up on proprietary GPS systems due to the update cost issue. I have been using a map app with my iPhone and ipad. The original cost was $59 for the Aust and NZ maps 4 years ago. I have just purchased the North American maps that include Canada and Mexico for $40 ad it is life time updates with the company that I used. If you integrate theses devices you can have cellular phone,GPS,music and video files and the Internet all through Bluetooth.