I see applications for this with OT's, PT's and SLP's when we are all spread out in different places. If everyone has been invited and joins as friends and the chat room is private - not public, you can see who is available and ask questions, do planning, etc. You can also set up a meeting in advance where everyone could join in at a certain time for a planning strategy session.
I have placed a Meebo widget on my sidebar that will show when I am available, called "No Limits 2 Learning AT Chat". You are welcome to visit this public chat room area on my blog sidebar or from the Meebo website. If I am there, ask a question, throw a suggestion or comment my way. I thought it would make a fun experiment.
All the best to you!