Currently working on this one, first prototype is done.

Got three buyers lined up, so ordered parts and will start 'production' soon.

It's got it's own mini site [[http://herman.kopinga.nl/likejar|here]].

Link collection to panelize the boards & speed up production.
[[http://ruggedcircuits.com/gerbmerge/| Gerbmerge tool]], 
[[http://tech.dir.groups.yahoo.com/group/kicad-users/message/5303| Kicad perspective on panelizing using Gerbmerge]], 
[[http://forum.sparkfun.com/viewtopic.php?t=10622| Not use Eagle (my pcb tool of choice) but Gerbmerge because of repeatability]].