[Q] New mysterious notification icon with 4.3

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http://forum.xda-developers.com – Hi all, So this is probably the ultimate noob question, but a new icon has shown up in my notification bar with 4.3. I have no idea what it is doing there, other than taking up space. I've attached a picture in the hopes that someone can ID it. It's the squarish thing between the GPS and sound profile icons near the left. Thanks! Attached Thumbnails   (HowTos)