The equipment that both MOS and OS4 runs on are pretty outdated by now.
Is the bickering really worth it anymore?
My crappy 300 dollar off the shelf PC has more horse power than any hardware either OS will ever run on, and I didn't have to shell out money for a proprietary OS on top of it.
Throw AROS on there (free to use, free to share), and while it won't exploit all the hardware at the moment, at least it has a future.
Bonus points that if I wanted to run AROS, I can actually go into a store and buy a cheapie PC to run it on.