My HTC One downloaded the upgrade yesterday, and I ended up with a new icon on my phone, and I can't figure out what it is. It is on the top strip (I call it the settings strip... its where the battery life, bluetooth icon, wi-fi icon, etc. are located) The icon looks like a white square with an odd looking "N" in it. I'd like to know in case a customer asks. Does anybody know what that icon means?