Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list management functions. Its user interface and functionality are similar to Microsoft Outlook. It can be connected to a Microsoft Exchange Server using its web interface and an Evolution add-on. Using gnome-pilot, it may be synchronized with Palm Pilot devices, and OpenSync enables it to be synchronized with mobile telephones and other PDAs.