Short Range Communications Network Using Bluetooth

I have recently started working with Bluetooth serial communications
at a basic level using VB.NET CF. I am interested to learn more about
the capabilities of Bluetooth. To date, I have read about the
different classes of Bluetooth, security, pairing, network range,
power consumptions and maximum number of devices connectable.

This is a very high-level question concerning what is possible with
Bluetooth:
Is it possible to generate a short-range wireless verbal-communication
network? E.g. Like a local (10m/100m) mobile phone network? For
example, if I had a Bluetooth enabled PDA, connected a Microphone then
connected seven Bluetooth enabled earpieces, is it possible to stream
audio signals to all seven simultaneously?

Any feedback, web links, articles, book titles or comments would be
really appreciated.

Thanks in Advance,
Owen