A quiet and extremely niche revolution may be underway: according to reports out of China, HDMI is on its last legs. Its successor? GPMI. If all that sounds like a bunch of vaguely familiar random letters to you, though, here’s why it’s important. What is HDMI? HDMI stands for High-Definition Multimedia Interface, and if you’ve ever set up… well, just about anything with a screen, really – a TV, a monitor, a projection screen for a presentation, whatever – then you’re probably familiar. They look like this: They’ve been around since 2002 in some form or another, though the exact...