It seems that ksh has recently been open-sourced. It may be a nice
addition to the distro (if the license permits, of course)...
http://slashdot.org/article.pl?sid=01/02/06/2030205&mode=thread
The primary drawback to ksh has been that it was proprietary.
This has recently changed
however. The new AT&T open source license allows ksh
source and binaries to be
shipped as part of the system and is now just beginning to
start showing up in Linux
systems; for example the latest slackware. The source or
binary for over a dozen
architectures can be downloaded from
(http://www.research.att.com/sw/download).
Hopefully other systems will start shipping ksh93 and
start using this for /bin/sh as well.
