I'm new to the iPhone 4. I've had it now for 4 days and absolutely love this phone. One thing I've noticed that I can't seem to find an answer for anywhere is that when data is being used there's a spinning gear that appears on the bar at the top. For the most part the location of that gear is between the 3G symbol and the clock, just left of centre. But I've noticed today for a few hours it was consistently appearing on the right side, just to the the left of the Battery indicator. And now it's back again between the 3G symbol and the clock. Is there a reason for this location swap? Is it random or is something specific setting it that way?