I saw the F6B, which I guess stands for flat six bagger, several months ago. It reminded me of a PC800 on steroids.
I snapped a few pics and forwarded them to a friend of mine who bleeds Honda red, and he turned his nose up at it. I was suggesting it as a replacement to his 1993 ST1100, so it seemed like a good match.
The F6B looks to me like an attempt to resurrect the idea behind the Valkyrie. Take the Goldwing, strip off a good bit of the weight, take away some of the modern amenities, and hope someone will buy enough of them to warrant production.
It was the Valkyrie that first steered me to the Rocket III Touring. The Valkyrie was a great bike for its purpose, and I suspect that the F6B will be similarly nice for its purpose.... but it ain't no Rocket III.