Ok, no need to discuss this further. The only point that I will add is that open source embedded platform simply needs open source design files - schematic, layouts, BOM, board support packages and so on. How this files will be used is not important for the basic project. One could deside to make EOMA cpu cards with standartized connectors, form factor and feature set. Other can make board with 2.54mm headers on 4 sides. Or solder joints on the edge. This should be separate from the schematics in the same way as linux source code is separated from any particular "board form factor" or 'SoM standard". I see this like the greatest benefit of EOMA project.