It's not the most popular move, but it can totally work in the right industry if you hustle. If you're trying to build Facebook, stop now. But if you're working on something sales heavy, B2B, with complicated legal/marketing hoops or in other words, more business-y needs than killer tech skill needs, then by all means make a run for it.

I started my company with another biz guy and it worked out. We hustled like crazy, got sales before there was a product, gave design/coding our best shot and eventually got lucky enough to find a tech co-founder who could tell that we were legit. It's not the easiest road, but it'd doable if you are in the right space with the right person. GL