Other Folding Bike
Found another folding bike at Design Within Reach in Soho. It appears to fold vertically whereas the Dahon folds horizontally. I'm not sure the DWR bike is the same one that MoMA sells (i.e. brand is Strida), but if it is, then it looks like the orange bike below. With the Strida bike, there is no metal chain. My friend, Angelos who builds mountain bikes told me, that this type of chain requires little maintenance.
Design Within Reach: