I realized that the 0.1X Control Board, at 60 mm, is slightly wider than the prototype 4D display, which is *tiny*. The 4D Systems uOLED-128-G2's display area is only 27 mm square, and the whole display unit including screw mounting holes is only 45.56 mm wide. (Product info here).

I redesigned the control board to add some mounting holes, update the revision to 0.2x, and most importantly to be much more compact, especially in width, going down to exactly the width of the display unit (once the header tab is broken off the left side).

[Pictures removed, due to design being deprecated.]