PennApps, LAHacks, HackTech, HackSC...all had expos. You're right in that demos for everyone just aren't feasible. But I think you understate the challenges a

PennApps, LAHacks, HackTech, HackSC...all had expos. You're right in that demos for everyone just aren't feasible. But I think you understate the challenges and downsides associated with expos. The hackathon explosion is just getting started, I'm sure things will continue to improve as these events mature.