Are you confident that YC has the knowledge and/or connections to help a startup whose customer base is fundamentally different from those you've worked with in the past? What if the customer base has shown years of resistance to following the lead of technology early adopters? Would you be able to either penetrate such a market directly or find another market whose lead they would follow? Or, how much more likely would you be to succeed at this than a hacker who applies his/her problem-solving skills to the question and tries a few things?