A few weeks ago Vittorio Bertocci and Marc Mercuri recently caught a couple of the WCF PMs (Kirill Gavrylyuk and Jorgen Thelin) off guard and recorded a conversation about the WCF Interop Plug-fest events.   If you're not familiar with the WCF inteorp Plug-fest, basically it's an event in Redmond where Microsoft partners and competitors test the interopability of their products with WCF.  

The video is now live on Channel9 here.