So I found this gem of bullshit on Yahoo.com:
Depp drew a lot of attention when the first photos of his costumed look as Tonto were released. In a radical departure from how the character looked on the ’50s TV series, Depp sports white-and-black facepaint and wears a stuffed crow on his head. But his voice in the role is not that far removed from how Jay Silverheels spoke as Tonto on the show. Depp’s tone is much deeper than we’re used to hearing, and he does use the character’s famously broken English.
Because getting an actual Native American actor to play the part of a Native American is just silly. We’ll have a bronzed Johnny Depp speak ‘engrish’ and wear a bird for a hat. Same difference right guy’s? Guy’s?…guys?