Mobile Apps?

I'm currently reading the NMC Horizon Project Short List (2013) for EDHI and I got really excited when I read the 'Mobile Apps' section. I could definitely envision using this in a class. Imagine the following scenario:

 At the end of each class, you do a 'muddiest point' activity where you ask students to take 60 seconds to jot down the portion of the day's lecture that was perhaps unclear to them. Assuming there's some sort of consensus, you could produce a short video (or two) or supplementary explanation that got send out via your app. This information would be easy to digest (~5 minutes or less), to encourage students to participate. Enrollment would (obviously) be optional and materials from the app would also be uploaded to the classroom management system for equal access.

Just a quick thought!