A new demo app (ZipCheck)is now available. This demo shows how to use HTTP/REST constraints to build web apps that provide immediate feedback without using Ajax or other scripting services. The source is viewable online and is included in the latest exyus runtime. Also, a new version of the exyus runtime install kit has been updated and posted to the exyus googlecode site. This is a minor update that cleans up some utility functions and cookie-handling code.