Microsoft's execs Joe Belfiore and Marcus Ash have been quite active on Twitter since the time Windows Phone 8.1 update1 aka GDR1 has started rolling out. On some users facing issues in updating to GDR1, Joe Belfiore tells that Microsoft is working on it and will inform about the fix.
Marcus Ash, the Group Program Manager for Cortana on Windows Phone has revealed in a tweet that Cortana has been updated in background. The latest update lets it predict football match outcomes beforehand. He has also posted the above screenshot of Cortana predicting outcome of Belgium vs US game. @CosminVasile New