The largest hotel companies in the world are experimenting with technology that allows guests to use their smartphones to open the doors to their rooms, bypassing the front desk upon arrival. Many of the hotels require guests to become members of their loyalty programs in order to use keyless entry. The functionality is also tied to mobile check-in on the hotel’s app. “Digital key is revolutionary,” says Joshua Sloser, vice president of digital product innovation at Hilton Worldwide. “It improves their stay and it improves their arrival.” Get the full story at USA Today