Not sure about F1 versus MotoGP but the 125 and 250 races today were bleedin awsome!!!!!
Not sure that substituting 600cc 4 strokes for the 250 class will be as much fun although the Supersport races at WSB are often great.
Wonder if the 600's that will run with MotoGP will be reasonably unrestricted design wise? If so it could bring about some interesting innovations that might find their way onto 600 road bikes?
Nice to see Mr. Button doing well though innit