I set a notebook on my keyboard the other day and discovered something kind of interesting about Communicator. When you put a dash ( – ) in the Type a name or phone number  field, it will display the first 50 OCS enabled users and contacts. I don’t know if this is already common knowledge, but I found it to be kind of cool. I asked around and no one else I know knew about it.

Here is a screenshot:

Yes, this does work for Microsoft Lyn 2010 (RC) client. FYI