The Jeff Pulver Blog: How Asynchronous Communications became the new Synchronous:
Aynchronous communications have only become the new synchronous communications because synchcom has been sorely neglected. My suspicions is most CEOs are worried about the liability of pedophiles and children, quite frankly. But it's only a liability if a chat room is centered around a server-based system. In a p2p model, you only communicate with people you already know, so it's never a problem. (How to meet new people is a completely seperate issue not addressed by mu in and of itself, but trust me, its addressed).
Here Jeff discusses how omnicasting and omnicatching overlap - a smart system would be able to sort and seperate output and input, and via the mu interface, present communications to the person(s) involved.
synchronous and asynchronous communications have always been a spectrum, just like introverted and extraverted. computer technology is allowing us to fully access that spectrum simultaneously for the first time, yet nobody is doing it as a complete package. As long we depend on asynchronous objective server systems like the WWW, it will never do so.