The fusion of product categories continues… just as GPS navigation takes off with cell phone users, just as camera phones are hitting 8 megapixels, the dedicated navigation device is fighting back. Now Garmin has a navi phone so you can have truly remarkable navigation (and a phone and camera too). The merging and blending of product features goes on and it will be interesting to see where it ends up. Will we truly have a single mobile device that is just as good as multiple dedicated devices?