This motor is called the Perendev Motor and its inventor says it works by using the power of permanent magnets (neodymium magnets) to propel itself.
You only have to close in the stators to the rotors for it to start spinning. Perendev is said to have made higher power versions, but none had been sold to the public at the time of this article.
Some even say Perendev cannot be contacted after paying for one of his motors. I don’t know if it’s a hoax, or if Perendev’s business has gone bankrupt.
Update June 15, 2010: Mike Brady, the man behind the Perendev magnetic motor, has been arrested in Germany. More on that here.