I have now recieved, built and tested both the minDUINO v1.5 and v1.6 boards. They operate fine so I hve published all the design files, including zipped Gerber files for fabrication, on my website http://www.ProjectAVR.com Feel free to use these files under Creative Commons v4.0 BY-SA Licencing.

The v1.6 board is specifically meant for programming, hence the ZIF Socket for convenience. I am thinking of designing one more variant which will be a v1.6 board with a prototyping area added to facilitate experimentation.