It was just three weeks ago that Nokia pushed out its Lumia Black software update to the Lumia 925 and 1020, with the promise that other Lumia phones would get updated asap. Well, sure enough, the Lumia 820 and 920 on AT&T have received the software patch, according to WPCentral. As on other Lumia devices, the update brings app folders, Bluetooth 4.0 LE support, an updated Glance screen and the unified Nokia Camera app. No RAW shooting, unfortunately -- that's a luxury reserved for 1020 and 1520 owners -- but you'll otherwise enjoy the same updates as anyone else with a newish Windows Phone 8 device. At any rate, feel free to get your download on, and do let us know in the comments how it all goes.