Dahon Curve SL, 2008 with Nexus Premium 8 hub, and many modifications.
It seems like the only difference is the hinge, it is new for 2008. I would get a 2007 if the price was right.
In the USA, there is a large price difference between new 2007's and 2008's. I think the lower value of the dollar has a lot to do with it.
thanks everyone for helping me out with this.... I am not sure the price differential once you factor in shipping and having to pay someone to set up makes it worthwhile.... Will try and find some dealers with models and do more comparison shopping.