First posted on this forum here: Superbooth 21 - #560 by Jukka
Name revealed as “Play” here: Polyend Play - #576 by alexbuga
EDIT: If you’re confused about why you’re getting notifications about this thread, it was originally titled: “Polyend un-named machine at SuperBooth 21”
EDIT2: For anyone wanting to skip all the speculation, the real info starts about here.