The iCalendar interoperability standard has brought productivity and publish-and-subscribe ease to only a portion of those wishing to share their calendars. Now a new emerging standard, CalDAV, can make cross-client calendar interoperability an even greater benefit. Apple, IBM, and others are on board. Google and Microsoft are hold-outs. But calendar interoperability guru Scott Mace, editor of Calendar Swamp, thinks that if Google adopts CalDAV it will force Microsoft's hand to bring standards-based calendaring to the Microsoft Outlook and Exchange products, as well as its Live online offerings. Listen to Mace's take on the calendar standards adoption outlook in this 30-minute BriefingsDirect podcast moderated by Dana Gardner of Interarbor Solutions. Also peruse the transcript of the discussion at http://briefingsdirect.blogspot.com/2006/09/full-transcript-of-dana-gardners_27.html.