I'm confused. I thought the 68k emulator was a longstanding project at Haage & Partner. They could have outsourced it, I guess, but this sounds like a completely different emulator than what was talked about years ago.
That was a conventional 68k emulator, and is much, much slower. Bernie Meyer (the author of UAE-JIT and Amithlon) offered H&P his services in producing a PPC version of the JIT emulator, but H&P declined as this would have meant paying Mr Meyer for his work, stating that the emulator they already had was plenty good enough. Of course, this was before the advent of Amithlon, AmigaXL and even the newer versions of UAE. Once these were released, using a non-JIT emulator in OS4 would have made it look silly.