I am the creator of a similar project to UBCD, which I call "The Recovery CD of DOOM".
Honestly, I had never heard of UBCD before one of my users suggested that I make a post here about it to spread the word.
trcdod strives to be as useful as possible without having to many redundant tools, but with a few things tossed in just to have fun with (like nethack).
I don't have a solid release schedule. When I find enought new crap to put in, I will release a new version, but I seem to have collected quite a following in just the few short months that trcdod has existed.
If you want to check it out, I'm at http://luna.vectori.net/~anorion/trcdod
If this is in the wrong area, I apologise.
-The TRCDOD Dev