iTeleport - iTeleport is a dynamic application that enables you to control your Mac from your Apple mobile devices, including iPhone and iPad.
Monect - Make the best use of sensors on smart device to control PC, simulate steering wheel, game-pad...
Unified Remote - Unified Remote is a software app available for iPhone, Android, and Windows Phone mobile operating systems. It's designed to turn your smartphone into a universal remote. Read more about Unified Remote.
LEA Extended Input - iOS/Android app with windows server to control functions in games via your smartphone/tablet.
Remote Mouse - Turn your smartphone into a wireless touchpad and keyboard now!
Wifipad - WifiPad transforms your iPhone/iPod Touch into a wireless gamepad.