Alex,
You crack me up! Asking about bindlingless/strapless solutions before you have even tried snowkiting. Let me guess, you were one of those guys that was asking how to jump before you even flew a trainer kite
I don't know one rider that rides strapless on a regular basis on the snow. I live in Utah and I have only seen guys mess around with strapless riding for a few minutes. I personally am not that coordinated, but I can tell you that I would be losing boards in the powder on a regular basis if I decided to go that direction.
As far as bindings go - a lot of riders like to take the high backs off of regular snowboard binding and many of us use the old K2 clickers. I like the K2 clickers.
I would like to try the pivot system in the video.
BTW, Alex your FS kites work great on the snow!
Kenny