New features like geolocation give an even increased admission of monitoring capabilities to large service providers like Google, where they also are enabled to track one's physical movements while users are using mobile devices, especially those which are syncing without any user interaction. Google's Gmail service is increasingly employing features to work as a stand-alone application which also might activate while a web browser is not even active for synchronizing; a feature mentioned on the Google I/O 2009 developer conference while showing the upcoming HTML5 features which Google and others are actively defining and promoting.