170 Million Google+ Users Later: What Have we Learned and What's New?

Our session will be in 2 parts.

Part 1:
We'll share the insights the Google+ team has gained whilst:
- building a beautiful new iOS app
- building a variety of new social plugins
- rolling out our new discovery-based approach to more and more Google APIs

They'll learn unusual things such as:
- the surprising popularity of bookmarklets amongst mainstream users
- the way in which context changes everything in social application design

Part 2:
We'll teach people everything they need to build Hangout Applications + Games that work well for 10 concurrent users or in livestreamed Hangouts On Air using features such as:
- real-time face motion detection
- overlays and face overlays
- shared state
- low-latency messaging
- sound-effects