With record sales of Dahon folding bicycles this year, I just want to note there is a voluntary recall related to the seat post bolt on some 2007 models.
Effective immediately, Dahon is issuing a voluntary recall notice to all owners regarding a potential safety issue with seat post bolts affecting all 2007 model year Dahon MATRIX, JACK, ESPRESSO, CADENZA, TOURNADO, and SMOOTH HOUND bicycles. It has been determined that the seat post bolt on some full-size models of Dahon bicycles can break under use and may pose a potential hazard.
For more details, check this PDF, available at the Dahon website.
Also, check out the Dahon Smooth Hound 6.0.