Bosch have adopted a similar closed shop approach attempt to re-invent the wheel on thier Motorbike Dash systems, Ducati have it on the current V4S Multistrada range and the Dash Nav system integration is widely criticised , most have fitted external GPS, like Garmin XT , its almost a defacto industry standard and Ducati themselves now offer it as an official accessory . Doing something different just because you can doesn't always make it a successful idea especially when there is already large market for the defacto ANT connectivity used practically everywhere in bike/fitness monitoring. Probably a VHS /Betamax argument but sometimes its better to swim with the tide than against especially when the offered HR nav integration on bosch bikes is soo crap to be little more than a gimmick . All just IMO