It depends on the valve the bottle has on it. I believe that NOS and NX have switched to a new style valve that is at a 30* angle, as opposed to the old style with a 90* angle (they have actual names, I forget them now).
From what I remember reading any bottle that has the standard 90* valve on it will work with the NX bottle opener.
The NOS (solenoid style) will work with any bottle as it doesn't actually open and close the valve.
Also, I love my NX opener.
Edit: read too fast. Yes all the purges from brands will work together as they use the same sized AN fittings (can't remember which size either right now, term paper all night)