I'm talking to Campus Days 2013. More precisely, I talk on Tuesday at 14 My topic is "The good, the bad and app" and is about how Carsten Keutmann and I made SharePoint Manager Online 2013 to SharePoint Store. I will talk about what thoughts we did before we start coding and what experience we have made. My session will recorded and can be seen here http://channel9.msdn.com/Events/Microsoft-Campus-Days/Microsoft-Campus-Days-2013/The-good-the-bad-and-the-app