Luna turns your iPad into a wireless Mac display

A little over two years ago, the startup Astro HQ emerged with an app that could turn an iPad into a drawing slate for Photoshop and other desktop illustration tools. Now, Astro HQ is back with a new product that goes even further: it’s a small piece of hardware that turns an iPad into a full-on second display, no wires required.
Astro HQ’s new product is called the Luna Display, and it’s supposed to look like a small crystal with a USB-C port sticking out of it. (A Mini Displa