As much as I'd hate my first post to be on a seemingly old thread, with the OP banned. I just had to say that I myself have noticed the same thing. This only happens with certain apps if you have them open in multitasking. Obviously Camera and Photos does this. From my experience AIM and Facebook do it too. It's not a stutter, but as another poster stated, it's more of a "different animation."
The culprit? Mulititasking.
With Mulititasking disabled, the phone does indeed run smoother. But you lose some of the functionality of it. Be that as it may, every app, even opened multiple times has the same animation with the icons "scattering" away from the screen. It's also been confirmed that closing the applications is much faster as well. Just a one second difference, won't matter much to most users.
Another small culprit. Wallpaper shadows.
With wallpaper shadows, opening and closing folders actually do have a small "jitter", especially with lots of folders, on lots of pages. Just delete the shadows if that's a problem.
All in all, a small problem you would've probably never noticed if the thread wasn't made.
If you want to see REAL lag, download the Farmville application. Not only does it take an excessive amount of RAM for no reason, it truly does slow down the phone. You don't even have to have an account, just download it open it, close it, and repeat.
I was able to crash an iPod Touch 2G with Farmville ( as a stress test), but with the iPhone 4. Apple is true to their sentiment. If you have an app that monitors RAM, when you open excessive amounts of apps, it really does free up the older apps to prevent crashes. They will still be in the multitasking, but won't be active, not even frozen. So the whole "you have to clean up the tray" doesn't really matter, it's just good to clear up the apps to get to the other ones down the line.
I've read this entire thread, and thought the whole thing was pretty funny. I assume the OP was banned because of his slight behavior to this. I just had to clear up what the problem was, in a more sensible manner? <--- Yeah that's a question. You haven't experience true lag until you've downloaded Farmville. Cheers!
