Great links; lotsa cool stuff.
Dahon's press release said the Eezz 3 had a foot operated derailleur - the bike on display has a verrrry ordinary twist grip shifter.
I'm very interested in this foot operated derailleur technology and would like to see it in action but I can't find anything on it. Most i know is that from another article somewhere that it was being developed by shimano. It sounds as cool as the bottom bracket strida 3 speed that sturmey custom made for it.