Welcome to F·SIM Space Shuttle. Part one of this manual contains a brief overview on how to steer the orbiter with your iPhone, iPad or iPod touch, an introduction to the head up display (HUD), and few tips on how to perform a successful landing.
Part two contains a lot of additional information compiled from various NASA documents, including the original Space Shuttle Crew Operations Manual and the Guidance, Navigation And Control Systems Brief, courtesy of NASASpaceflight.com. They are provided as background information for the interested reader (you don't have to read all of that to use F·SIM Space Shuttle). It also contains a chapter about system failures (like a stuck speedbrake) you can configure as an additional challenge.