Quoted from mhs:PAPA now has this capability, and we will be broadcasting seminars and similar live from different events in the future, but I need to speak with Mike regarding his feelings on the matter before commenting on Expo specifically.
It is a paid event, so giving away the content for free might be an issue if there's concern that it might motivate people on the fence to not bother coming. People like myself can never make it to expo though so there's no loss of ticket sales there. I wonder what kind of win-win can be figured out.
Pay-per-view? Ad supported? Sponsorship?
Could even be something as simple as your ticket for entry gets you access to the online component, so even if I was not attending in person I might still buy a ticket for that.
If you read this Mike, maybe you can give it some thought. Might as well get ahead of the technology curve.