The iTunes LP album and iTunes Extras movie-enriching bonus material bundles Apple introduced as a new feature of iTunes 9 are built using a new TuneKit JavaScript framework and appear aimed to deliver new big screen content to Apple TV.
The new iTunes interactive media content formats are built using open web standards: HTML, CSS, and JavaScript, using a new framework Apple calls TuneKit. The new media authoring framework is referenced repeatedly within the iTunes Extra component files.
