Remote Mouse - Turn your smartphone into a wireless touchpad and keyboard now!
Monect - Make the best use of sensors on smart device to control PC, simulate steering wheel, game-pad...
Rowmote - Rowmote Pro, a Mac remote control and wireless keyboard & trackpad for iPhone, iPod Touch, and iPad
LEA Extended Input - iOS/Android app with windows server to control functions in games via your smartphone/tablet.
AIO Remote - AIO Remote stands for All In One Remote, With All In One remote, you can control any application...
aGamepad - aGamepad allows you to use your Android based phone as gamepad for Windows.