Here I wrote about Compulab PC/104 (586base) and Slackware installed on it. I decided to give a try to some software upgrade. CF card was changed to 1Gb capacity. Debian Lenny was installed. With all development stuff and ssh "df" shows 75% use. "Safecom" PCMCIA card (SWLCT-54125) now has open-source driver at http://acx100.sourceforge.net/
It doesn't compile on 2.6.32 kernel, but with debian original 2.6.26 kernel everything compiles and works. I have some ideas for this project.