Sean Voisen (eat orange has posted a few tips for creating a Flash-based chat client.
He writes:
These first few tips deal with the technological aspects of implementing an auto-scrolling text field as a chat window, and the option of pressing the ENTER key to quickly send messages. My techniques involve using the new MX event model and methods of the ever-wonderful TextField object.
Good information for anyone that is making a Flash based chat application, maybe with something like Sean’s FlashJabber Conf
I actually used the listbox component as the basis of a chatwindow. It enables clicking and responding on URL or data statements.