feather linux 0.6.2
After trying out other thin clients (pxes, thinstation) as a means of quickly having an "X terminal", I ended up at feather linux. Nice and small and has the necessaries for secure X connections through ssh. The aesthetic tastes of the author are certainly not mine but the distribution is:
1) small - easy to use as a ramdisk
2) functional - takes well under 5 min. to be up and running -- X11 works fine, device autodection works great, ssh works fine, etc.
An open, cross-platform journaling program.
A scientific plotting package.