This post is authored by Ernestine Fu and Jeff Himmelman.  YC Hacks is Y Combinator's first hackathon. Named the top startup incubator, YC has funded several well-known companies including Dropbox, AirBnB, and reddit. The hackathon has attracted hundreds of engineers and designers to YC's offices in Mountain View, California. Forbes will be liveblogging the hackathon, so refresh this post throughout the weekend for updates. Are you at YC Hacks at building something cool? [...]