Looks like this is the month for Mach-II sample applications. Kurt Wiersma has put together a sample/starter application using Mach-II and ColdSpring. Dubbed "Appbooster", the application comes with a simple interface to manage users and roles. It demonstrates one way to build CRUD apps with Mach-II and ColdSpring. Check it out at http://jroller.com/page/kwiersma?entry=introducing_appbooster