But since you're such a stickler for detail Kamtsa, why help derail the thread from the original question? The OP wanted to know about which range of bikes to choose from not another Dahon Vs Tern dispute thread ;-)

If you prefer high-end 20" folders then Tern is probably looking like the best from current reviews and considering the input of Josh Hon in previous high-end Dahons like the Jetstream and Jetstream EX (which I own). If you are on a more restricted budget or want a smaller wheeled folder then Dahon comes into the picture more. Having said that, I wouldn't restrict pre-purchase research to Dahon Vs Tern only.