The livecd has been neglected until now, and Celliax too, because of
Skypiax ;-).
Starting monday I'll begin to port Celliax to FS.
really grateful that skypiax was given  priority though :) its really very useful. 


Would be nice to have the livecd with both Celliax and Skypiax, on
both FS and *.

In the past I used Knoppix as a base for the livecds, maybe today we
can start from Ubuntu live cd? What do you think?

Certainly. I second on using  Ubuntu live cd platform for this.

here are a few links to the relevant documents
https://help.ubuntu.com/community/InstallCDCustomization
https://help.ubuntu.com/community/LiveCDCustomization
https://help.ubuntu.com/community/LiveCDCustomizationFromScratch


Thanks
Gourav