Here is where Dan Nathan describes the trade - http://www.riskreversal.com/2012/09/07/new-trade-aapl-flat-term-structure-speaks-to-fading-the-iphone-event-sept-and-buying-the-rumored-ipad-mini-event-in-oct/. Maybe he is a member of SteadyOptions? That would explain some of the liquidity issues we have seen lately..
The problem is he is a bit late to the party - I recommended the trade below $9, and those who got it at this price, are already up ~15%.