I have been periodically installing the latest "test" version of Squeeze on my PowerMac G4 (digital audio) hoping that when the finalized version is released at the end of this year I can recommend it as a good alternative to Mac OS X Tiger on older PowerPC machines. I like how it has matured over the months and it's almost there.
Too bad, though, that Alsamixer is still broke "out of the box" requiring a patch to run right, and that one has to rebuild Netatalk in order to share files with OS X Snow Leopard. Most Mac users just aren't going to do that and will continue to use Tiger which "just works" until something better comes along.
Thanks to those who continue to work on these problems.
2319 La Senda
Santa Fe, NM 87505