I have found something new. There is a successful attempt on replicating an effect used in a patented Howard Johnson magnetic motor. The patent No. 4,151,431 was granted in 1979(!).
The author, nickname 'Mylow' has posted several videos of his crude prototype. I have attached the most convincing of them.
[flash=425,344:219vqq4n]http://www.youtube.com/v/2sCeQ8bwmcE[/flash:219vqq4n]
EDIT: It has been debunked. In this video he was using a thin fishing line to rotate the motor. š