I think it is just as important for artists of all kinds to have the same exposure as musical artists! I think that Myspace is missing a huge opportunity here. Glad to see this petition!
Not an artist perse, but I am a filmmaker and we have our own page. I think artists SHOULD have their own page. Myspace is an excellent way to get your stuff out there, whatever that stuff is.
I support this petition provided that the section of the TOS stating that all intellectual property posted on MySpace is owned by the parent company gets removed.