As per the last time this came up a couple of years ago, the exact same set of questions with the exact same series of answers keep coming up every few months on this list regarding installing debian on PowerPC macs.
We had a few keen volunteers back then who were interested in spearheading such a document to help people through these installation issues, and Adrian indicated that although he didn't have time to write it but would be happy to review it back then. It still seems like a fine idea to me, and would certainly help folks who keep running into the same issues over and over, as most of them just all came up once again in the past month, with the same answers as before. I'm not exactly sure why the FAQ didn't happen last time -- I think it was felt to be unnecessary? .. but as recent events would indicate, seems like it is still a fair idea. Ken