I couldn't resist and brought it home.
so far I have found no one trying to root a NST-GL yet so here are my observations (but not a review) about the new 1.1.5 firmware on it and the Glowlight hardware after a couple of hours.
the basic menu now has a Glowlight item on the basic "n" press menu which brings up the brightness slider. there is also a little lightbulb always there in the top taskbar next to the wifi icon which shows on/off. I am hoping these are only additional programs and updated menu that wouldn't be affected by root.
press and hold for 2 seconds and toggle the light on/off as reviews have said. it really seems like a hardware function as it works even with the screen locked (but not asleep). I am not ready to try Nooter on it because of this special "n" function and wonder if it would work with the current version of NookColor Tools to get to the adw launcher.
also, just letting everybody know these are in stores already if someone wants to be first to root.