This from nukethefridge...
"Iron Man creator and Marvel comics legend, Stan Lee will be playing "Larry King" in "Iron Man 2." Lee as "King" will interview Tony Stark (Robert Downey, Jr.) on "Larry King Live." Stan Lee will be questioning Stark about his new, modified "black" Iron Man suit."
They say their source also confirms that Lee will be a playable character in "Marvel: Ultimate Alliance 2."
This has not been confirmed so treat it as only a rumor until further notice, but that Black Suit thing is veeeery interesting!