I ran into a little weirdness yesterday with my iPhone. The “slide to unlock” was running slow or not responding. A few other things seemed to be running slow too.Knowing that the iPhone is really just a tiny computer it seemed logical to restart it, which fixed the problem, duh. I did a quick search online and discovered a few other people had the same problem and found the same fix.
To do turn off your iPhone just power off (press and hold button on top right) and then turn it back on after it has shut down (press and hold same button). Still loving my iPhone by the way. Amazing little thing.