This is an interesting report from June but I don't believe it has been linked earlier.
More detailed reports on Krall and Camerlengo are found here:
On the subject of Dartfish, I read this the other day and found it interesting:
Canadian Divers Utilizing the iPad to their Advantage at London 2012 Olympics
Traditional video analyzing software, Dartfish, has been utilized by top athletes such as Canadian figure skater Patrick Chan and used in other sports such as golf and tennis to record and analyze athletes. The difference? Dartfish pricing starts at $1000. Baseball Coach Plus HD? It’s $2.99 in the App Store. Of course, the two aren’t the same but it just goes to show how iOS developers have come a long way in creating some incredible apps.