I did not find anything about FIS-format, or did you mean FIT? Of course it would be possible to include such format. Do you have a file of this format to test?
hmm maybe it would make sense to show additional curves, like heartrate, in the track view, I do not have such device, but there are some files in the net to test.
@virago:
Hey cool, but there are only some images, no download, is there also a download for this program?