I've just gotten a crescent moon shaped icon in the top bar on the home screen of my iPhone 4. Running iOS 6.0.1. Anyone know what this is for, and/or where I can find a master key of iPhone icons?
settings - do not disturb - OFF
Open Settings and turn off Do Not Disturb.
Why can't I "slide to power on"?
You should probably start your own thread for this. The thread you posted to is both old, and unrelated to your question.Would also help if post a little more detail.
What in the world does that have to do with this discussion?
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