WWDC app for OS X - An app to view and watch WWDC sessions on your Mac
Jodel - What is Jodel all about? Jodel is the community that shows you what's happening in your area in real-time.
Iventlist - Create an app for your event in minutes 🎟️
Berkanan - Chat with people nearby. Even offline, on an ✈️.
WWDC Together - Watch and discuss WWDC together
Treadie - Create your own micro-social network for topics