It would offer access to the mac software ecosystem, particularly the (imho) cohesive set of underlying frameworks. Just like linux is "just" a kernel but is in

It would offer access to the mac software ecosystem, particularly the (imho) cohesive set of underlying frameworks. Just like linux is "just" a kernel but is in reality a center of floss development, actively organizing around bringing binary compatibility can bring incidental benefits. That said at this point I don't see anything inherently easier or beneficial about this than creating some other project around an alternative paradigm than PC derived desktop systems on top of some existing better supported kernel. That said contrary to what the previous poster implied I don't think either OpenDarwin or PureDarwin aimed at reproducing the proprietary bits—they were/are essentially quirky, buggy, poorly documented BSDs just as reliant on the floss ecosystem as much better supported stacks.