I think it was possibly developed by Nine Continent and was offered by some major retailers, like Grin, Electric bike and Whoosh, in both motor and completed Ebike form during a brief period between 2009 and 2012.
It is a small, 3.5 Kg. direct drive motor in the 300 to 500 Watt range, available in 4 winds.
It seems to have fallen out of favor, as it has been dropped by the above three retailers, but is still on the Nine Continents site.
I don't see it many other places, just a few vague Alibaba want-a-be sites.
Then there is this mysterious You Tube Vid;
What is he doing? Trying different phase/hall combos w/a switching box?
'03 Rocky Mountain Edge 2WD 260 Q100H frt and Ezee V1 rear 2 Elifebike 20A & 25A 9-FET controllers 12S/20Ah Multistar Lipo rear 5Ah Turnigy frt Luna Cyclops Extra lite Alex 24DM rims, Crazy Bobs run ghetto tubeless. 25 mph. Mean Well HLG-320H-54A
'07 GT Idive 4 4.0, Q100C 201 14S LiPoly elifebike 9-FET 20A controller. 23 MPH.