It is very basic but there are VideoChat examples that you can use as a starting place. There is Flash Pro (.fla) and Flash Builder (flex) examples
There is an unofficial example that was made in Flex 3 and includes a little more in the way of logging in and user presence here
These examples are staring places, there is a not a tutorial or guide to further development. These are Flash client examples.
There is no way for new developer to learn wowza for making custom application. Then how new developer will learn development in wowza?
This is not great if no new developer will come into wowza development then many of us who are new to wowza will not be able to learn wowza development. Adobe has many tutorials for learning flex and also advance development that’s why adobe allways wins. Wowza should create new tutorials for developers to learn this platform so that more new developers get attracted to this platform.
Don’t take it otherwise. I am talking in favor of new developers who are willing to learn wowza.