Key to Google's Web application development effort is its Google Web Tools (GWT) applications, which became open source in 2006. This week, Google debuted GWT 2.0, which provides new developer workflow improvements as well performance enhancements. "Developers are impatient because their users are impatient," Dave Glazer, Google's director of engineering, said during the Campfire One developer event this week. "We all—when using and building software—just want to get things done. The theme of GWT 2 is building faster apps and running them faster."