Not quite a folding bike (other than the fact that it pivots under the cargo box.
Cool video of a Haley Trike with Sara and Stephen in Philly.
I love these because the prototype was built in my courtyard in Savannah, GA when Stephen helped us restore our 1873 house.
http://www.youtube.com/watch?v=6NcGpc0w8vk
www.haleytrikes.com