Grand Theft Auto V received a lot of praise for delivering a detailed, immersive world for players to explore, but Reddit user planetleak decided it wasn't enough. Enter his own homebrewed project, an iPhone app that controls GTA V's in-game phone.
The app hasn't been released, and it's not even finished based on planetleak's Reddit comments. But the above video gives a peek at what it looks like in action, using the PC version of the game, an Arduino board and some very basic Xcode, according to its creator.
Grand Theft Auto V uses smartphones as in-game menus, allowing players to manage their contacts, send and receive emails and texts related to the story and take photos -- all with buttons that resemble modern smartphone layout.