If you are wandering around in the world of Dead Island then you should know that the game has quite a large map to navigate. Of course there are maps online you could look at but how about a bite sized map that sits right on your iPhone. Also how about if that map showed the locations of all different kinds of collectibles in the game, ranging from audio diaries, ID cards and Banoi Herald journals.
The app is going to cost $2.99 which unfortunately seems a bit pricey, but the map is certainly a handy little tool that makes for uninterruptable gameplay. Of course, when the location of the collectibles is posted online it may take away from the value significantly. Either way though you can download the map app here.