Filled it out . . . good luck with your research and please share your results when you have all your data!

Have been seeing more folders in Seattle this past year, I think because REI has started to carry Dahons and Bike Friday is also not far away. I think the multi-modal/inside storage/don't need a car rack appeals to a lot of people.

Saw LOTS of folders, all different brands, when I was in the resort area (Kenting) in the south of Taiwan. It was probably one of the most attractive road cycling areas on the island, plus I could imagine it's pretty easy for people to put a folder in their car / on the bus / on the train, vs a regular bike. 20" wheel size seemed to be popular, which is also what I have.