hi,
would it be possible, that you will add an api for other apps like mytracks do? http://code.google.com/p/mytracks/wiki/MyTracksApi
With this it would be possible, that i can get my speed, heartrate etc from oruxmaps an write a little programm to send these data to my pebble smartwatch.
With this api it would be easier to support other smartwatches, because other people could write the programms for these smartwatches.
greetings from Germany
Did you tried gpx autosaving and read these files?