Work on NetBSD for classic Amigas with PowerPC cards is progressing. Thanks to Frank Wille, Jukka Andberg and a cast of thousands, now we have NetBSD fully utilizing processing power of Cyberstorm PPC and Blizzard PPC cards. There are still many problems and bugs to be solved, but the system is already booting and working in single user mode.
There is no binary release yet, but anyone can pull the sources out of CVS repo, apply patches submitted to port-amigappc at netbsd.org mailing list, build it and test!