I only ask these questions because I think they are important. I applied to YC and just had a conversation w/ someone who applied also however at the time of application we were both single founders.
I consider myself technical but I'm sure not as technical as many of you since I've only dealt in front-end web development. YC does have super specific criteria for applying, they are looking for a certain type of founder (or team of co-founders) so it would be helpful to this discussion to know.
I think it also depends on the idea/start-up submitted. Part of the review process does seem like they are looking at the entrepreneur but it also seems like they are looking at the entrepreneur (or team) and their ability to execute on the idea.
Just my thoughts...