The multitrack idea is facinating. I saw on /. some time ago about a sound studio distro. I could imagine making a sound studio track would be within reason for your knopbase. I myself am facinated with the idea of a lightweight gui track. The window manager must be fast and efficient and themeable (wow, cool word). I need to look on the web for some data. Surely somebody has done some kind of study on what the average person uses his computer for. From this I would like to include the best apps for the job. Web browser, email, ftp, chat, mp3/ogg player, cd ripper, cd burner, video player are all gimmes. I suppose openoffice and the gimp would need to included also. A solitaire and minesweeper game (chuckle) would round it out. I am sure I have left some things out. Once I get some time I am going to dive into the idea. I just got through cleaning and scanning 1745 35mm color slides and I need a break from XP for a while.
Does anybody have any suggestions for a windows manager, I plan on tinkering with all the wm that Knoppix sports and start from there.
A good name for a modular (add the functionality track of your choice) Knoppix could be morphix I suppose.

Maudite