The Verge reports that Google has agreed to allow Microsoft to use its Sync service on Windows 8 phones until the end of the year.
Google had originally planned to end syncing support for Windows Phones phones back in January as part of a shift to the CardDAV and CalDAV protocol, but later agreed to extend it to the end of July to give Microsoft more time to develop its own syncing solution.
Microsoft has now done this and included it in the latest version of Windows Phone 8 (GDR2), but has so far rolled out the update to only a limited number of handsets. The company asked Google for a further extension, and Google has now agreed to extend support until 31st December.
Perhaps this is further evidence of thawing relationships between Google and its rivals. Last month, Google Executive Chairman Eric Schmidt suggested that the company was getting along better with Apple.