Copilot X is an application that allows you to issue voice commands through your Android device to control X-Plane v9/10/11, the popular flight simulator developed by Laminar Research. The application works by using the Google Voice Recognition service to process your spoken commands and send the appropriate data to X-Plane. Now, complicated procedures such as dialing in a radio frequency or setting the autopilot hold altitude are as simple as saying what you want!
Note that you must have Google's Voice Search application or another speech recognition service installed on your Android device in order to use Copilot X. Please visit the developer's website to download the manual for Copilot X, which contains configuration instructions and a complete list of commands.