"One day before the Common Instrument Interface working meeting, on December 12, 2012, the Hosted Payload Alliance (HPA) is hosting a Working Meeting from 8:00 a.m. to 5:00 p.m. at the James E. Webb Auditorium at NASA Headquarters, 300 E Street, SW, Washington, DC, the same location as the CII meeting."
Keith's 15 Nov note: According to the HPA website this event is "for HPA members only". I find it rather odd that NASA uses its resources to put out a formal, official, government solicitation notice - one that includes an announcement for this meeting - one that uses public (government facilities) but that the public and media will not be allowed to attend. Moreover NASA doesn't even bother to tell anyone that this is a closed meeting or why it is closed.
Keith's 28 Nov update: The Hosted Payload Alliance contacted NASAWatch to note that "the note on the HPA website about the event being Members Only was an administrative error, and has been removed - this meeting is most definitely for the public, and has been planned as such from the beginning. Any and all individuals who would like to attend are more than encouraged.."