I would say move to San Francisco, but you've got kids. Stay where you are and just start networking your balls off, I would start with any free tech related events you can find. You'll probably get a good idea pretty quickly whether or not your idea is worth pursuing simply by getting out there and talking about it.
Yea, that works better. I like it, simple and to the point. Would be nice to have the hourly wage and work hours bigger - make the bits you want people to fill in stand out a bit more.
"Past performance is not a reliable indicator of future results" this expression should be used more often when data has a big human element attached to it.