Other thing, the Maps step is copy by hand to device. But all other step like waypoint or track upload / download are done automatically over network ( local wlan ) Detection is made with udp broadcast.

To test, start M on the N900, with wifi conected for example.

From that in GT add waypoint on your map then select M as device if it is not done then clock on Upload. If device is detected you see a progress.

Same for track download or upload. To Upload a track, open one or create a overlay path, then right click on it and convert to track

Good night