Cappuccino is a drag and drop editor for creating desktop applications created by 280North. It includes built in libraries and behaviors that enable options like autosaving and cut-and-paste.
New is Atlas which takes the fundamentals of Cappucinno and simplifies it even more adding WYSIWYG editing to the mix.
Capucinno and Atlas are MVC framework (Model-View-Controller) objects. This means that the UI is separated from the business logic allowing for easier modification of the data (Model) from the UI (View). The controller is the glue that manages the communication of data and business objects used to manipulate the data between the two states.