This webcast seems interesting. Check it if you want to understand more about apps, to learn about the proven practices of architecting and developing apps and migrating SharePoint solutions to apps. These are the words from the SharePoint Developer Team.
Here it is the link: Webcast
The SharePoint Development Team is taking pretty serious when they say: "As a SharePoint developer, you should make http://www.reimaginespdev.com your first stop when planning and developing your next app or migrating your existing SharePoint solution."
I want to check this session, so if you are a developer, I invite you to do the same.
Click here to read the same content in Portuguese.