Havent seen anybody post these issues up but, currently me and my girlfriend are experiencing these same issues as far as iOS 5 on the iPhone 4 below...
When in the lock screen and listening to music, if you skip to next song, the screen will shuffle once between lock screen picture, to Album art. If we skip again to next song, it may do it again, it may not, but it will do it more than once.
Also, when taking a new picture, when you go to view it, for a split second, you see the image render from pixels to clear image...fyi, i tested this out at the apple store with the iphone 4s thinking it was maybe the iOS5 on my iPhone 4, and the iPhone 4S does it too, only it is much faster so you barely, and i mean, BARELY notice it. Probably because it has the A5 and it renders images faster. Just wondering if anyone else is experiencing this as i haven't seen any posts related to what me and my girlfriends iPhone 4' are experiencing.