Ok, so 15 FPS isn't ideal for standard video applications, but wouldn't this FPS setting allow for improved low light if they set it up right? All the other gopros had a slowest FPS of 30 as far as I know, and the one thing that has kept me from using them is their low light performance.
Technically, if there is a 15 FPS setting now, they should be using a 1/15 shutter speed, giving one stop more exposure from what they would have at 30 fps.
I guess the question is if they actually have the firmware set up that way or not.