No, I’m not talking about a resonator guitar. This is an effect. It essentially adds tons of sustain and feedback kind of like one of those Moog guitars, but in a pedal connected to a gooseneck stand that appears to have an optical scanning device attached to the end that “reads” your strings, then processes the vibrations. It’s interesting to say the least, and Uli Jon Roth apparently uses it.
That said, I like the idea of having something like this to get super-sustain and feedback, and totally get that you don’t have to spend an arm and a leg to get at least part of what the Moog guitar does, but it’s another piece of equipment to lug around. Don’t know how I feel about that.
Don’t know how practical it is, but I’ve seen worse things.
Guitar Gear 
Is that in any way related to an E-bow?
Great question. I was thinking along the same lines myself. But I think an e-bow actually makes the vibrations, whereas this reads the vibration optically.