mksh formed new allegiances: the Beastiebox Project (10x hubertf@TNF for mentioning) has added mksh(1) today, and the latest project of CcSsNET, CcSsLIVE (broken link removed 20100916), will include it soonish as well. Nicely, he already links to MirBSD, for he sits in our IRC channel usually and is one of the sparc users.
The next version of grml GNU/Linux might very well come not just with mksh(1) (except grml-small), but also with bootbsd.com née boot(8/i386) and bsd.rd (a slightly “tuned” version with added e3 editor and sans the Install/Upgrade/Shell prompt). On the contrary, I’m toying with the idea of adding a ports/sysutils/pxegrub for local boot along with a slightly tuned (add mksh at the very least) on the DuaLive ISOs if I find we have the space. We’ll have to work out something, licence and GPL-source-requirement wise, but we’re positive this would work out well. Considering just how good of a rescue system our bsd.rd kernel is, already, and what added benefit a minimal pretty standard Live Linux may provide.