RadrenBlog

The video above is an evidence that this is not fake, i've tried it too,it is actually working

Installation

1. Download .zip file below (.exe (.Net application) for Windows and .apk for Galaxy Note)
2. Extract .zip
3. Install SPenDigitizer.apk on Galaxy Note
4. Launch SPenClient.exe on Windows (Windows will ask you to allow access to Network - you should allow)
5. Launch S-Pen Digitizer on your Note
6. It should work by default, but for better performance you can change host ip to point directly to your Windows machine

This is the software and apps that you're gonna need
>>Download SpenDigitizer<<

*note: Not only galaxy note or tablet can do this,as long as your android version is 4.0 or more,pretty sure it will work