Responsive design is forcing us to reevaluate our design and development practices. It's also forcing us to rethink how we communicate with our clients and what a project's deliverables might be. Pattern Lab helps bridge the gap by providing one tool that allows for the creation of modular systems as well as gives clients the tools review the work in the place it's going to be used: the browser.
This deck reviews some of the features of Pattern Lab. It also discusses how I feel it can fit into the overall workflow of a team. It doesn't cover the technical aspects of the tool but I'm happy to follow-up if anyone wants me to. Also, be sure to check out the documentation at http://pattern-lab.info/docs/