I don't want to be snarky, but I'm having a hard time resisting. Two technical co-founders have shuttered a business and moving on to work "hard on a new product which we're super excited about." It's great that you're super excited about it, but wouldn't it even be more exciting if you had a business minded co-founder who could demonstrate the market opportunity, or lack thereof, and make sure the time, energy, and sweat equity you're dumping into this will have some payback?
I do appreciate the use of "'technical cofounder' and not 'developer.'" I think a lot of technical co-founders that also write code have been annoyed to hell by the non-technical business people who don't understand the effort required to realize their big awesome idea.