A new iPhone app called Knock lets you log in to your Mac just by knocking. It's more fun than useful, but boy, does it have design chops.
Knock is a new iOS app that allows you to unlock your Mac by rapping on your iPhone screen twice. But let's hold off on talking about that for a second. Let's instead focus on the video used to unveil the app in all its ironic, irreverent yet impeccably designed glory. Because that's basically Knock Software in a nutshell. These guys know app design, they just can't help but have a sense of humor about it.