I just wanted to update my post here. I've been experiencing choppy animations ever since 4.1 and I've narrowed it down to something to do with landscape mode. Open Safari Load a webpage Turn device landscape (with no orientation lock) Close Safari Re-open Safari (this is when I see the choppy launch animation). The first half of the animation is completely gone and only shows the last little bit. I can also do this with Notes, Mail, Contacts and a number of 3rd party apps also do this. Here's what the animation looks like normally: http://www.youtube.com/watch?v=CyHmDS7kyQE Here's what the animation looks like when it skips: http://www.youtube.com/watch?v=yFlAosKb4Zo I submitted the bug back when 4.1 came back out and they (Apple) still haven't fixed it. This sucks basically. The iPhone 4 was so smooth before 4.1 came out. Below is what my CPU usage looks on a regular basis. I have no idea what the iPhone is doing.