Is there a difference between the CyanogenMod 11S Rom (for OnePlus One) and regular CyanogenMod? How does the CyanogenMod 11S Rom on the forthcoming OnePlus One smartphone differ (if at all) from regular versions or nightlies of CyanogenMod that can be downloaded and installed on other Smartphones ?

Would this be another unique selling point (from a software perspective) for this particular handset?

OnePlus
AndroidPit has an article that outlines the major differences.

http://www.androidpit.com/cyanogenmod-11-vs-cyanogenmod-11s-the-main-differences


Google Apps, no root
Extra Themes and Wallpapers
Display activation via tapping
Optional on-screen buttons
Screen calibration and adaptive lighting
Camera and Gallery App
Boot Animation
AudioFX instead of DPS Manager


Other than this, CyanogenMod 11S is natively tested on the OnePlus One and contains the best possible drivers for the phone. Essentially, it is optimised to run on the OnePlus One..