I joined, because I want to hear about AndyK's Moulton. These are really beautiful bikes. I've been riding a Brompton folding bike for the past several years (before that I had an aluminum frame Raleigh Technium set up as a touring bike), and occasionally, before folders became particularly popular in the US, some of the NYC folder riders would get together occasionally for group rides, and sometimes there would be a few Moultons as well, not necessarily folders, but as small-wheeled bikes, they have a certain affinity with folders.
Anyway, I find the Brompton perfect for getting around New York City. It's all pretty flat, so three speeds cover pretty much any situation (though I could get more, if I wanted them). It folds in about 20 seconds, so it's easy to switch between subway and cycle, and it doesn't take up much space in the apartment. I've gotten a few upgrades to what was the basic Brompton when I bought it around 1998--lighter titanium seatpost and Terry TFI Liberator saddle, racing wheels and Primo Comet tires, front V-brakes (the original Brompton brakes weren't so great, but they've been improved on current models), and a few other things from Len Rubin, who is obsessed with perfecting the Brompton.
UK Brompton website--
http://www.brompton.co.uk/
US Brompton website--
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Len Rubin's site--
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