Update to this thread…
I've built the Editor from source on Ubuntu 14.04 and opened a blueprint project I started in windows. Did run into issues but the people in the irc chat room provided good help, and have been working on better support. Would really like to be using the UE4 editor in Linux full-time, as it was the major factor for me in using the engine. I like playing with the engine and would like to finish a game, but don't like the idea of having to do it from windows or mac.