I am still on iOS 6 on my 4s, but if iOS 7 would give a boost to the camera performance, I may considered the update. I was wondering if there is any better performance, specifically on the 4s, such as shutter speed and focus, and so on. Thanks!
I don't know that the camera is actually any faster but my 4S camera seems to be slightly faster. I think it could just be because of the lack of the shutter animation.