@mart Yeah, though a few differences. The one pictured is actually a contra (a more DIY knockoff), rewired and controlled by a teensy++2.0 (found it half-broken on eBay).
The OLKB #planck is rev4 PCB.

Minor layout differences are due to memory constraints: This one has a key to type the preamble to the US Declaration of Independence, and the #OLKB one can play audio through the speaker.