Zimbra, a division of Yahoo! company, has expanded its support for Apple products and technologies, including Safari 3 and CalDAV for Mac OS X Leopard. The new Zimbra Collaboration Suite (ZCS) now fully supports Safari 3. The suite's AJAX interface, including email, calendaring, Zimbra Documents, and customizable mash- ups called Zimlets, now take full advantage of the browser. Zimbra also now supports CalDAV, a key feature for customers using Leopard’s iCal 3 as their calendaring client. Based on a public standard, CalDAV allows users to synchronize and browse free/busy time and recurring appointments easily, both with personal and public calendars.

Additionally, ZCS is now available to iPhone users via the Zimbra Mobile HTML client. The Zimbra Connector for Apple iSync allows users to sync not only their email but also their address books and calendars to their iPhones.

COmpany officials said "These enhancements reflect Zimbra’s ongoing commitment to the Mac community, and to providing innovative features for the Mac platform. Zimbra has long supported iSync, which provides a two-way sync between Apple Mail, Address Book, iCal, Microsoft Entourage, and the ZCS server."

The ZCS 5.0 Open Source Edition, available now, is free. The commercially supported ZCS 5.0 Network Edition is available for a 60-day free trial.