I run the DSP plugin company airwindows.com and have continued to support PPC machines, though I don't think it extends back to OS 9. Recently added Mac and PC

I run the DSP plugin company airwindows.com and have continued to support PPC machines, though I don't think it extends back to OS 9. Recently added Mac and PC VST (I'm told the backward compatibility on Windows tends to reach back farther: from my experiences in XCode I can believe it). I'm understandably very curious whether there even is any DAW that can use the PPC Mac VST support I've been including in the new plugins :)