Not sure how legit this source is but came across it in the internet poker forum
As I've said in the Galfond thread I think this is a great idea.
One thing I think might be good is to have the player list anonymous. This way you have to play several hands to get an idea of who is in the zoom pool, making it very unprofitable for a bumhunter to "have a look".
Another thing to remember is that we're using Zoom not for the original purpose it was built but for the de facto elimination of bumhunting that its lobby structure creates. In other words, we still want to be able to see the end of the hand so I would suggest two fold buttons:
"Zoom" = fold and move to next table
"Fold" = regular fold, move to next table when hand finishes