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You can watch the event live at 6pm PST (2am London - boo) here: https://www.facebook.com/E3Expo/
DoubleFine have also released more details of upcoming "Presents" projects, like the cool looking Knights and Bikes, and the fun looking Ooblets, and the bonkers lookings KIDS. Not to mention gameplay updates and an XBox One release for Gang Beasts.
They probably released some stuff about Psychonauts 2, as well, but I can't find that.