"It's disappointing that both Google and Microsoft chose their own interests over end users," said Patrick Moorhead, principal analyst at Moor Insights & Strategy, in an email. "This rift impacts both consumers and businesses negatively and needs to be addressed immediately. Impacted users won't change calendar services [just] to work with Windows 8, so it's up to Microsoft to do the right thing and implement CalDAV. [But] Google deserves ridicule for stopping EAS support, too."
CalDAV (Calendaring Extensions to WebDAV) is a Web standard for accessing online calendars and syncing scheduling information between devices as well as between different software.
Windows 8's Calendar does not support CalDAV. Microsoft declined to comment on whether it will add that functionality to the app.
Although Google Calendar supports CalDAV -- as do Apple's iOS and OS X calendars -- Microsoft's Hotmail (which includes a calendar) and Redmond's Outlook email client do not.
The only option Windows 8 and Windows RT users now have to maintain synchronization with Google Calendar is to ignore the Modern-style Calendar app update currently in the Windows Store.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed. His email address is email@example.com.
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