Yehuda Katz
Over the years, Yehuda has worked on a number of open source projects, including Ruby on Rails, jQuery and Rust. He also created some of his own, including Handlebars, Ember.js and Cargo (Rust's package manager). At the moment, he's working on a new library that extracts the best part's of Ember's auto-tracking reactivity system into a package that you can use in any UI framework. That's what this talk is about!