I think he knows that already.
I don't own a PPC board, but from what I understand, there are some that come with a 68040/060 on them AS WELL as a PPC CPU. These can run 68000 software just fine.
Then there are those that don't come with ONLY the PPC processor chip, and must use 68000 emulation to run the earlier software. I don't know for sure, but there may be some compatibility issues with this.
Of course, in ANY case, you can usually disable the PPC CPU and revert to your Amiga's native 68000 (A2000), 68020 (A1200) or 68030 (A3000D) processor to run "classic" software.
