I have multiple ideas in multiple stages of development, like most devs do i'm sure, however I applied with what I thought was the most promising idea that will monetize easier than others.
That is part of the reason I chose it to apply to YC. I was not "looking" for an idea to pitch to YC, but I felt I could benefit greatly from YC. In most cases when I think of a new idea I bootstrap it and work for an exit without outside investors (I've already had a decent exit in the software industry) however I felt that YC experience could
A. Help me build a network in SV where I plan on moving in the near future anyway B. Get insight some of the greatest minds in our industry C. Have an experience which I felt could not be matched in any bootstrapped company, because of the opportunity to meet other likeminded individuals who share my interests and passion for technology.