I agree that this is part of the success. There are other competitors, but they failed. The other half of the success equation is that they were able to get i

I agree that this is part of the success. There are other competitors, but they failed. The other half of the success equation is that they were able to get important people to push their startup (IE: ycombinator and any of the connections they were able to get through this). If they were just a couple of guys working on it, I don't think it would be as successful.