As I posted above, the Marvel deal would only affect one of Universal's parks. Universal thinks they'll be OK as part of their current licensing deal with Marvel. However, Iger and Disney's management side-stepped the Islands of Adventure question when asked this morning.
They already are. Marvel and Apple announced a deal back in February to sell "motion comics" on the iTunes Store. Additionally, many of their original animated series (X-Men: The Animated Series, Spider-Man, etc) are now on iTunes.
http://arstechnica.com/apple/news/2009/02/marvel-to-sell-motion-comics-via-itunes-store.ars
I meant real comic books. The kind where you flip through pages.