An urgent alert has been issued by Google and it's a good idea to check your Gmail inbox for an important email from the US technology giant. The warning has been raised due to a big change that's coming soon to the popular Google Maps service with those not acting fast being told that their data is at risk of being deleted. Google says that it is switching things up, with its Timeline service being moved from a cloud-based system - which stores information away from phones - to an on-device