Smartphones have gotten progressively smaller, sleeker and more powerful in the past few years, but most of them don’t address one annoying problem – you have to hold them. Oh bother. If you’re looking for something with a little more superhero panache, check out what Asus just unveiled at the Consumer Electronics Show – the insanely futuristic Waveface Ultra. It’s a superthin, flexible OLED wristband cell phone that you can snap onto your wrist, sort of like those outlawed slap bracelets from the 90s (remember those?). And the kicker? You can control it by magically gesturing your fingers – touchscreen is so very 2009.