Garmin Forerunner 310XT ANT protocol data downloader/uploader. Waypoints, tracks, courses and fintess data. Output format is GPX. There is a possibility that it would support other devices like Garmin Edge series and other ANT FS devices.
Best ANT+ for Garmin integration on linux so far! Usable and still needs tweaks and refinement. I see a GUI in its future!