EN Burton of U Knighted: 4 guitars at once, 2 with toes

The music isn't bad, but how this guy does this is pretty mindblowing, at least based on this (and other?) videos. I imagine he's spent a good amount of time developing this skill, but it's something pretty unique. EN Burton's album comes out soon as the radio station I volunteer at received a copy yesterday (how I found out about him and U Knighted). The bio on the U Knighted site even lists some good influences including Pink Floyd and Opeth.