The goal was to have a board that fits the FeatherWing standard and gives me the chance to prototype something with the SAMD21 and Ethernet board. Sadly the SAMD21 and the MAX3421E libraries didn't play along well, so I had to stick to the Teensy++ 2.0 and lost track of this project. Never tested the boards until recently and noticed that VCC and 3V3 were never connected - fixed that now!
Do you have plans to make these available for purchase? If not, any recommendations about companies that can provide a small quantity of boards at a reasonable price based on your schematic files at the github site? Never done that before, but been thinking about it and this seems as useful an item to start with as many I've seen.