It seems like I have been keeping the iP4 brightness at a lot higher setting compared to my 3GS. I kept my 3GS at about 1/4 on the slider but have the iP4 at over 1/2. Maybe the amazing screen quality (improve color and contrast, etc) is making me want to keep it brighter? Hopefully this won't impact the battery life too much compared to my 3GS. Anyone else notice this as well? BTW, I've had only one issue with my iP4 so far and that was the yellow glue, but it has gone away already. BTW, I've had only one issue with my iP4, the yellow glue at the bottom, but it has gone away.