@wawrzon I'm already being accused of making promises I'll never keep, despite not yet making any promises, so I definitely won't promise a 68k version! I'd like to think a vampire build might one day be a possibility but right now I'm just spitballing ideas.
I have had a play with OWB on AROS and it renders well but certainly uses all the ram it can get. On OS4 it's just too unstable IMHO. Again, we already have an embedded build for powerpc, and frankly working with code we already know and can build upon is likely to be more productive than importing code from another side project. WebKit also needs a recent GCC 4.7+, which I don't think exists on 68k but maybe exists as a cross compiler?