When I first upgraded to the iPhone 4 from the 3G, I was not only amazing with how much faster it was, but how smooth it was. Opening apps, switching screens, going landscape, etc. Less than a month in, it's already lost that. Most noticeably I seem to have a stutter when I open folders, and going landscape. Just wondering if anyone else has had this happen? I've done hard resets, going to do a restore soon if I can't figure anything out.