I was curious as well. Looks like he worked on Mira, an AR company that is working on shipping hardware that works with your phone. Reading the about section (https://www.mirareality.com/about), it's kind of funny, lists only three founders, who are not him, in the copy, but the photo at the top of the page has 4 founders. Looked like it could be an interesting product, though I'm sure the right AR glasses that customers will purchase need to be far less bulky.