Russell Kett, a hotels expert at hotel analyst HVS, said: "This technology is coming in faster than people might expect - it will be commonplace within five years in the UK. Card keys can be frustrating and while some traditional hotels will stick to proper keys with fobs, many hotels will seek to improve customer experiences by replacing cards with new technology." At present Hilton's new cardless key system is only available to their "Honors" members who download its smartphone app but if successful it could be rolled out to all its customers. Get the full story at The Telegraph