No, Dwayne "The Rock" Johnson did not create Smackdown.
Yes, The Rock is in SmackDown vs Raw 2008.
It was a word the Rock used to use frequently. ie, "The Rock is going to lay the smackdown on your candy ass."
No. The Rock is officially retired, and Smackdown vs. Raw 2008 is the only Smackdown vs. Raw game with Hall of Fame included. Therefore, '09 only has the current superstars (most of them) in the roster.
Dwayne Johnson formely known as the Rock is NOT returning to wrestling! He has said over and over again that he is through with his wrestling career. He will still make special apperance ocassionally like he did for Smackdown's anniversary show! But for as returning full time to the WWE NO he WILL NOT
You can't
No you have to make him
The Rock
To best of my knowledge The Rock is in the SVR 2010
You can't
if you still rock like me
The rock