Hi, just traded iphone in on a new S3 yesterday. Pretty happy with it so far. I did notice a few things that weren't on there when I got it and wonder if anyone has had a similar experience. When I drag my finger on the screen, it started leaving a line following the swipe on the screen. Also, there is a line of letters and #'s (some highlighted in red) across the notification bar at the top. They change as I navigate to different pages. They remind me of like coordinates changing as your location changes. Do these sound familiar to anyone?