hi,
The AT&T AST OpenSource software collection [1] , The Heirloom Project [2]
and Plan 9 from User Space [3] bring a lot of original UNIX tools/utils.
Some of them have already been taken, mailx from Heirloom and ksh from
AST. pax looks like a candidate.
pax in Fedora comes from a OpenBSD port, made by SuSE in 2oo1 [4] .
But the project was frozen||abandoned in 2oo5.
[1]
http://www2.research.att.com/sw/download/
[2]
http://heirloom.sf.net/
[3]
http://swtch.com/plan9port/
[4]
ftp://ftp.suse.com/pub/people/kukuk/pax/