Anything that is *not* front-end direct communication, but rather strictly one-to-one within the admin in WordPress, would be of interest. :)
I have a client using Olark -- that sort of interface within the Dashboard/admin area would be nice within the admin (though it need not be nearly as fancy!), as it retains the chat window on various pages as you move to different areas of the site (or, in this case, the admin areas). Obviously this would *not* need all the added features of user tracking, look&feel, etc. though... just an intercom-like function within the admin -- if Intercom.io is a great option for potentially porting that functionality to the admin, I'm all for it!
Jarrod Pyper and I were chatting about the value of such a tool in the WordPress community -- seems like it would become something rather ubiquitous in a short time? How helpful would/could that become if WordPress eventually came with a intercom feature out-of-the-box? It's surprising to me that it isn't already something that is "out there"... I can envision it -- just don't have near the developer chops (being a designer, dabbling in such things) to pull it off -- which is where wiser WordPress'ers such as yourself come into play. :)
Thanks for the response, Bob -- let's keep this dialog going?
S