I started my company 1 year ago. I haven't found any clients and haven't built a product, but I've traveled around the country talking to potenatial customers. Want to come work for me with no salary for the next 2 years in exchange for a 4% stake?

I understand your point here, but this situation appears to be a bit different.

- VC money and some salary is on the way shortly http://news.ycombinator.com/item?id=178290

- The idea seems to have matured and people want it.

Sounds like a good deal to me.

VC money and salary is on the way in 2 to 3 years (according to the initial post). And having an idea of something customers want is good, but without a product it's still a huge risk.