The 54-hour competition for developers, designers, marketers, product managers, and startup enthusiasts returns to Boulder, where it was launched in 2007. Teams form Friday night to launch startups and present their companies Sunday night. Prizes go to top teams. Speakers scheduled to appear include Brad Feld, David Cohen and Ingrid Alongi. Cost $99 per person, but students get $49 tickets with student IDs. More information and registration is here.