Mail in Leopard features numerous improvements in many different areas. Data Detector is one of its greatest new feature, and allows detecting events and contact’s information, providing a tight integration with Address Book and iCal. Quick Look integration is extremely useful, allowing you to view various attachments from an e-mail in a flash. Stationaries and Photo Browser makes it even easier to compose great looking e-mails. With To-Dos, Notes and RSS, Mail goes way beyond managing only e-mail, and moves toward a personal information management system. Here is a quick look on this application in Leopard.