Was going thought some old links, and found that back in 2005-12-23 NetBSD/dreamcast was updated, and it seems that everyone has missed it.
NetBSD 3.0 has been released with support for 57 architectures. More information is available in the 3.0 release announcement.
Download from thier FTP
ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-3.0/dreamcast/
Warning 117MBs of files
