When I'm riding challenging trains on my MTB - it would be nice to be able to keep track of when I come off of my bike - likely by pressing a button on my watch. Analyzing this data online in Connect could help me determine sections of trail that I consistently struggle with (opposed to spots where I occasionally come off my bike due to fatigue).
Hopefully as I continue to explore the capabilities of Connect IQ I will be able to build something along these lines! (Unless someone can beat me to it and save me the trouble :))