I haven't worked on it since that, because I've been finishing other interesting projects.
Right now I'd like to assemble a group of people interested in further development of a product based on that idea, so I wonder what should I ask people, and what should I give them in return. I have zero money currently so all I can give is a promise of equity or something like that :-).
I know it doesn't sound serious enough to ask people to sacrifice their time for some ludicrously random project, so I wonder how should I approach to realization of my idea?