Steorn just provided more evidence of their claims.
They held their final demo and presented some very interesting experiments.
Steorn Orbo - Proving Overunity 1/2
http://www.youtube.com/watch?v=T4Q3Klq5dxM
Steorn Orbo - Proving Overunity 2/2
http://www.youtube.com/watch?v=p7i7P63IByY
It's neat how they can move the pick up coil closer or further away without causing the current trace to change. Also, I think it's compelling that the neodymium magnets in their system only contained 2J of energy, but their system "created" many thousands of joules!