Dudes, I said AROS(implying native) would kick OS4s ass, not UAE emulation. I'm just passing on what I read somewhere, and wasn't assessing its technical merits.
Besides, if you know something is 16bit you'd have to install it under UAE running on AROS, instead of it doing it automatically, and accept the limitations. My hope would be that they integrate the window system somehow, so it at least looks like its one entity.
I figure if AROS gets far enough, people could create ports for it, like they do for MOS, classic and OS4. Maybe they are already, and I'm just not hearing about it.