I really don't like the green and blue of 2009. I think the red of 2008 is alright.
I really like the black 2010.
But seeing that yellow . . . I think I might like that the best. Anybody got more pics of the yellow? (probably won't be available here anyway

)
EDIT: Of course - it's available in Europe . . .
http://www.kawasaki.eu/Versys