The app is a dedicated hub for all of Wikia's community-curated Shadow of Mordor content, including player-written guides to help with certain missions and background info on characters. While in the app's "reader" mode, users can peruse a wealth of information about the game and the lore surrounding it.
More interesting, however, is a secondary sync mode within Palantir. Once initiated, sync mode constantly listens to the game audio coming off your display and automatically retrieves relevant information surrounding protagonist Talion's current going-ons. Information runs the gamut from character biographies to mission walkthroughs and more.
An initial version of the app will be available later this month, with limited sync capabilities – not that it's useful unless you're watching a trailer for the game. Wikia and Warner Bros. will offer the app free of charge on iPad, though Wikia isn't opposed to offering Palantir on other platforms down the line.
Middle-earth: Shadow of Mordor, in development at Monolith Productions, launches this year on Xbox One, Xbox 360, PS4, PS3 and PC.
Middle-earth: Shadow of Mordor (Palantir Companion App)