Public channels Excellent for public object distribution, where you don't care about data access control. Basic publish/subscribe semantics. Start here to get a feel for real-time programming with Appstax.
Private channels. For when you need more sophisticated real-time capabilities, including channel ownership, secure channel access to users complete grant/revoke model.
Real-time object events. Integrate with the DataStorage component and make your app react in real-time to object changes in the back-end.