In yet another Web 2.0 meets telephony moment the folks from Iotum have launched Calliflower, a Facebook-based application for conference calling.  Calliflower provides an ability for an organization to host public or private conference calls, with back-channels for participants such as the ability to chat and see Facebook profiles of others on the call, as well as raise hands to ask questions.  Non-Facebook users can also participate via traditional dial-in numbers with PIN codes, or via VOIP services such as Skype and Truphone.  The service launch tonight featured a call with William Shatner, yes, that William Shatner.  In July they will host a call with Alan Alda of MASH fame.

Right now Calliflower is free.  Im still not sure of the long-term business model, but it will be interesting to follow further developments.