Ok, thanks a lot ppl :-)
Wilson, the paper was a very interesting read. It's quite funny to seewhat people do with ruby.
Kero, feeds.handhels.org seems down for me. Are you sure it's the right domain ?
For more precisions, Elphel cameras[1] run with an Etrax AxisProcessor and an FPGA.I will look into this during the week.
Cheers,  zimba
http://zimba.oree.ch
[1]: http://wiki.elphel.com/