Aaron Woolfson is making great progress with the restoration of PLATO terminals for the conference. He posted some photos yesterday:

At the left is a PLATO IV terminal. Center is a PLATO V terminal. At right is a restored Control Data IST-II terminal. (Click on the links to go directly to Aaron's actual images.) With luck we'll have five, six, maybe seven restored terminals working at the PLATO @ 50 conference on June 2-3. Hope to see you there!