The upper portion is supported by two wine bottles and tensioned tight This project was inspired in part by the "Green Tea Modular Shelving" Project. http://www.instructables.com/id/Ten-Green---modular-shelving/
The legs are removable and shown is a my proof of concept for the method of attaching the legs. It's a very sturdy connection and allows the whole table to be collapsed into a much smaller area.
It's my first wood working project and I'm very happy with how it turned out. It was made over a period of about a month because I'm a full time student graduating this May, so I fit it in whenever I had a few extra hours.
The colors in these photos don't do it justice but I could take some great pictures with a brand new camera....