Rossi is rumored to bat for the other team. Don't know if it's true or not but you never see him with any of the GP chicken heads.
The dude is a phenom on a bike. He's won a championship in just about every cc class there is. Watch him sometime if you get a chance. The crap he pulls off against his opponents is amazing.
As for Isle of Man, Rossi rode the course with one of the legends just to check it out. After taking a lap around the island he commented that the guys who do it are out of their minds. Besides, isn't it a prerequisite for those riders to have f'd up crooked teeth. Didn't see one of them with a decent grill.