Good point. And the SODIMM-based pinout doesn't seem to include support for PCI-E or additional Ethernet, so that is indeed a bit limiting (though I'm betting some of the pins could be repurposed if both ends are configured for it, e.g. if there was some way for a SOPINE and baseboard to negotiate "hey, neither of us have camera support, so let's use the camera pins for extra Ethernet").