Plane Talk is pretty cool man. It's certainly opening up a whole new world to me. As Kirk has said, he thinks more in numbers than specific notes. I can't really go into any detail as to give away
PT, I'll just say it's helping my fingers learn where to go on their own.
I don't think any of the guitar heroes think in terms of note for note while their noodling away. The cool thing about PT is, from the chords, there the notes be.
You can learn where to be on the fretboard, at the right times and you'll learn (over time, still learning myself) what the underlying options are from the chords being played.
There's no set of rules really, you go where your ears and fingers want it to, but you know where you're at at all times and where the "bad" stuff is and what to avoid.
This is not the same ole, same ole guitar wanking exercises you do repetitively to make you a rock god overnight. This a thought process. A building block. It will take time to learn and apply. I say this because I'm learning it still and know that it's not an overnight thing.
The basic idea/foundation of it is definitely simple, but will take a while to apply effectively as you learn.