Graviman,
It's an unusual, but interesting, concept.
I believe that it is being considered as an entrant for the US 'Joint Heavy Lift' (JHL), along with a large Boeing tandem and a Bell V-44. Sikorsky had submitted two coaxial rotorcraft, but it appears that one or both were recently rejected.
Dave
Now, if they are able to separate the rotors for hover and combine them for cruise ......
