This Thursday, October 25, Boston Beta is hosting Boston's largest open source demo night. Boston Beta is part cocktail party, part demo night. Join hundreds of entrepreneurs, founders, and hackers for an evening of interactive demos and open socializing. There will be a "free-as-in-beer" open bar from 7:30-8:30 pm and delicious appetizers from Whole Foods. http://bostonbeta.eventbrite.com

The first 10 people to use "GHC" will unlock a secret free ticket to the event.