I fixed one of their older Boardwalk singlespeed models. Fits in the trunk of my Honda CRX and I can take it out on my lunch time rides rather than lugging my full-sized fixie. I need to get a smaller cog and/or a bigger chainring though as the gearing is a tad bit easy.
The fenders, rear rack and wheel reflectors have been removed. And I'm not the only one. There is also acavengo and some others on the folder forum who've done the same.