I've been keeping track of DFly BSD for a while now, and I really like where it is headed. The network stack alone is polished enough that if I were to, say, start a local ISP, I would probably be using it as the primary backend.

Dillon's decision to support only x86-x64 I think was a good choice because it helped reduced the workload associated with his multiprocessing/threading system, which is another awesome set of features that I have a feeling will end up forcing Linux and Mach to re-evaluate how they do some things.

For me, I think it may be time to move it out of a VM and onto a semi-regular use machine bare metal.

Once Hammer2 is prod ready I have a feeling I may like it better than ZFS or BTRFS, but only time will tell I suppose.