by Matt Ranlett and Brendon Schwartz
Status Bar and Notifications
Another new feature of SharePoint 2010 is the Dialog framework, where you can create pop-up modal dialogs that focus the user on data without distracting UI elements. The pop-up dialog is usually used to present forms and list data without leaving the application page, greatly reducing the user’s need for the back button. Microsoft makes heavy use of the Dialog framework in native Lists and Libraries, but available APIs allow custom code to have the same look and feel as Microsoft’s own dialogs, making it easier to write and integrate code into SharePoint.