Indeed. Or other sports applications. I have a friend that is an elite-level track coach. She has an iPad app that helps analyze running form from video. Th

Indeed. Or other sports applications. I have a friend that is an elite-level track coach. She has an iPad app that helps analyze running form from video. This tech could be used to improve apps like that. My own little pet thought experiment for years has been an app that would track violin or 'cello bow motion to provide feedback to students on bowing technique. I am sure there are many similar applications.