Ask YC: Advice on shutting down startup

I and 2 of my friends developed Onista (http://www.onista.com) a while back and we also invested some money (not a whole lot) for hosting and legal bills (like forming corp, patent investigations and all) We launched it, and somehow we never got to do much on marketing the app so it never picked up (or may be it was a wrong idea to begin with) At this moment all 3 of us lost the interest and want to shut down Onista to pursue other ideas independently because our time commitments are not same anymore.

What are our options? - Try to sell Onista? Not sure if we can even do that since there is not much traffic. Don;t even know if we can do this. - Just shutdown servers, dissolve corp and move on?

Any advice on what is the best way to move on?

Thanks in advance