The LAUNCH Festival 2014 Hackathon is February 21-23 in San Francisco. LAUNCH Hackathon #3 is offering grand prizes of $2M investment or $10k cash, awesome food, massages, and additional prizes from API partners. The best part? It’s free! Find out more info and apply to participate (limited to 800 participants): http://hackathon.launch.co. Not able to make…