As promised, Marvel and Disney have delivered The Avengers Initiative: A Marvel Second Screen App for iPhone and iPad ahead of Marvel's The Avengers Blu-ray release September 25th. While much of the content will be released over time between now and then, it already has some character profiles and animated special effects deconstructions for users to paw through, as well as an Item 47 game for Comic-Con attendees. There's a list of features after the break, or you can hit iTunes for the free app right now -- if you prefer a Fl
