Just as a reminder, SXSW starts this Saturday so it would be a good idea to get as far away from downtown Austin as possible lol..
There is the Saturday Cabela's meet that Budwise mentioned. If I'm not too busy I would probably head to that, definitely willing to meet up earlier if I can but...
That's exactly it and in my opinion, I bet all they did was upgrade the intercooler to get to 320HP. Obviously no one will know until they get their hands on it but I think a big tell is how huge that front portion is. Just look at the thing...
I wrote up a pretty lengthy review with some pics on the Cobb AP
http://www.mustang6g.com/forums/showthread.php?t=13123
You could always check that out if you're interested in learning more from my experience. Obviously I'd say go with Cobb hehe.
Yes, there's a power button right on the top of the AP but even with it off I think there's still a small amount of power draw. I just unhook it after every drive and stow it away.
I'm not sure if they'll offer it, might have to PM them on here but I'd be careful moving it up to 7200RPM with what happened to that other mustang. At the very least put in a bigger intercooler and maybe firm up the internals.