At the time of writing this blog post, the BOT framework is still in preview so things are subject to change! However, if you already played with it and tried to enable the Teams Channel for one of your BOTs, you’ll see that it behaves differently than for the WebChat Channel.
At the time of writing (08/2015), Office 365 is really becoming a great platform with a lot of APIs for a very affordable and competitive price. As I'm currently involved in OneDrive for Business implementation, I focused on the File API whose the main endpoints is:
and I consider it a good start. The integration with Azure Active Directory is awesome (also with the other services) but the API itself lacks two major features to rock: