It was me who posted this video and some info to rotaryforum, and I have some information about this helo from the first hand - from the test pilot who made these flights.
Simon853: it is two-place tandem with back seat staggered to the right side.
IFMU: this video is from the very first test flights so flight were short, guys made some adjustments after each flight. And, aftre all they didn't try to get new altitude record
Somebody told it has no control rods to rotors. They exist - inside the mast. Rotors are controllable even more than usually. In this control scheme each rotor pitch can be adjusted inflight. Such control system was invented by one of Kamov employee years ago, but wasn't accepted by Kamov (I thnk just to some personal reasons). It's patented now. This time I'm translating some more detailed technical information in English about it - will post here when ready.