Imagine not having to check-in at the desk to get into your hotel room, but instead being sent your "key" digitally. When you get to your hotel room door, you s

Imagine not having to check-in at the desk to get into your hotel room, but instead being sent your "key" digitally. When you get to your hotel room door, you simply tap your phone on it. These were use cases we used 4 years ago, before the rise of smartphones.