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.
Typeeto - Use Mac’s keyboard to type on iPad, iPhone, Android, etc.
Remote Mouse - Turn your smartphone into a wireless touchpad and keyboard now!
Type2phone - Type2Phone: Use your Mac as keyboard for iOS devices
EventGhost - EventGhost is an advanced, easy to use and extensible automation tool for MS Windows.
1keyboard - Type on your iPhone, iPad or AppleTV using your Mac keyboard