I'm quite interested in MorphOS for MacMini, but as I've never used MorphOS before, I'll consider it further when it comes out and can read up on it more etc.
If OS4.1 came to something affordable, I'd be using that. But that's unlikely to happen.
Otherwise, I'll probably still be using Linux for most stuff. I just wish there was a good css-capable browser that I could run in Amiga Forever. That would keep me happy for a while.