ThinkVitamin.com is featuring an article by Francisco that goes through the process of adding undo/redo support to an existing application. It uses a “furniture layout” application as the model, and goes through all the steps necessary to make user actions undoable.
This is a great demonstration of one of the powerful built-in features in Cappuccino, and a good read for anyone building an application in Cappuccino. Undo support is one of those features that goes a long way in making your application more enjoyable to use, and customers will love you for it.
So go checkout the tutorial, then get started adding undo support to your own applications!