ripping my hair out here. Im on a 2015 R1200GS. I just sold my NAV 5, and I still have the nav prep which fits the NAV 6. Montana 610, Zumo 595LM, Monterra, or NAV 6, and even considering just my iPhone or an android tablet. I think id prefer a dedicated device. maybe someone can help me? Looking to follow pre loaded routes with turn by turn directions for day rides, or multi day rides. I'm also looking to follow offload tracks for portions of the rides. 595LM: Id love to have music, and iOS notifications, but its not a deal breaker. The interface looks much nicer than NAV and Montana. NAV 6: Having the wonder wheel integration and the bike live info on the screen is helpful but also not a deal breaker. Montana: looks like a good all around device but I'm not sure what it lacks compared to the 595 and NAV 6 besides bells and whistles. Like - something about no detour options and other road related things? Monterra: looks like its the ideal device since it runs android apps too (rever, waze, etc) but since the android version is so outdated, it really can't actually run most of the apps I care about. id have to wire in a new nav mount for the Montana or Zumo... and I guess I would need to add in a n extra touratech lock for it too since I commute with my bike and don't want to take it off all the time.