Man of Honour
Might be a it behind the times with this, just discovered on stock JB that if you adjust the slider with Automatic Brightness on, you can increase the default brightness! Yay, I always thought it was too dark before!
I mentioned this many weeks ago, it is indeed a cool feature! Variable auto brightness is win.
Also following on from the ICS days, Samsung have kept the "flick the top of the screen" action to show the notification bar when playing full screen apps.