Any details on this at all? A hint?

I like Panos have been doing this for more than 4 years, and I've seen no silver bullets. I'd like to think we're (CastingWords) doing it better than anyone else, and I don't even know what a silver bullet would look like at this point. Though I have to say that Panos's list is a good start.

Is this something that runs on top of MTurk or similar existing crowd-sourcing networks or a new crowd-sourcing network?

Tell us where to sign up to be notified of beta.

I have an API that addresses some of these issues in alpha right now: http://houdinihq.com. Feel free to get in touch if you'd like - my email's in my profile.