Anyways, I'd like to request that a Developer look into porting this feature for us.
Here are all the files & info for it on the Galaxy S3:
Basically, this lets you use the NFC tags for proximity rather than "tap's". So if you dock your phone, it is now touching the NFC tag and your setup engages.
Then when you remove your phone from the dock, it's no longer touching the NFC so your setup disengages.
No having to tap to "enable" and tap again to "disable". Which makes it super useful in many situations.