Is it possible to create app for Garmin 820/1000 which grab data via mobile (Bluetooth) and then showing real time "live segments" from Strava (for those users which are not premium) ?
It seems it should be possible to write a full-blown application to do it, but that means you won't be able to use the built-in run/ride applications while using it. It might also be possible to use backgrounding to download the data and access it from a data field that runs in the native apps.