Courtesy of the CR-48 blog (which also shows how to install Ubuntu), you can install functional track-pad drivers. This includes multitouch, two finger scrolling, and better responsiveness. All you need to do is download the DRIVERS and double click on .deb package. Then follow the on screen instructions agreeing to all of the terms of service. It will prompt you for the root password (which is user by default). Once done, restart your Chromebook and start programming!
Have more tips/questions? Tweet me @RoboTechEd or on Facebook.