But it's so practical! Because we as a species are so, so lazy.
This is the UpperCup and it doesn't exist. Yet.
UpperCup is the brainchild of a Natwerk, a company in Amsterdam. They're trying to raise enough funding to go into production, making it dangerously easy to use your phone while walking. Because your Angry Birds high score isn't going to wait for you to finish your Chai latte.