Bump this back up...
Can't somebody add some frame measurement data about DT Mini, Raleigh 20, Brompton, Merc, Strida, Bike Friday, Dahon, Swift or ??? For anyone wondering if they will fit on bike X a standarized set of measurements would make it much easier.
Wheel base and effective top and seat tube measurements would be the most useful. I don't care if they are metric or english or furlongs. If you don't want to post a pix then just post the numbers.