After looking through a .NET magazine I saw an article which referenced http://conferencesburnedbypaypal.tumblr.com
I figure be a nice idea if we had a standard letter and some sort of "gameplan" that uses bitcoins. Im sure most of them would seize the oppertunity (esp with bit-pay services and things making life oh so easy
Once the March convention is underway, I'll be happy to tell my experiences of accepting sponsor and exhibitor payments and donations from around the world easily and within minutes. My only game plan regarding payments was installing the BTCinch Opencart plugin.