Discussing a National Virtual Reference Service

I really wish I was going to ALA Midwinter this week just so I could participate in the discussion hosted by OCLC on what a national virtual reference service might look like. Here is the description of the event on the registration page for it:

Sunday, January 9
10:30 am – 12:00 pm, San Diego Convention Center, Room 24 A
Building a National Reference Service
Libraries provide virtual reference services locally, with local library staff, and—in some cases—regionally or statewide. While many countries have national reference services, the US does not. Join us for a discussion of what a national ‘ask a librarian’ service could look like, and how it could be accomplished.

I have been aware of some of the discussions over the past few years, but they only seem to take place at ALA events. Is anyone else writing or talking about this someplace else?