NOTE: Requires a rooted device with Xposed installed. This will not work on a stock Note device.

A module for the Xposed framework for Galaxy Note devices that limits touch input to the S-Pen to prevent interference from your skin when trying to write naturally.

This module also provides a floating window that allows you to quickly toggle the S-Pen-only mode without having to disable the module and reboot the device. You can close the floating window either by launching the app again or clicking on the notification tied to the window.

Permission usage:
SYSTEM_ALERT_WINDOW: This is used to create the floating toggle window
READ/WRITE_EXTERNAL_STORAGE: The toggle is implemented via the existence of the file "spenonly" on the external storage

Github: http://github.com/ObsidianX/xposed-spenonly