Some guy that chose to remain anonymous, claims he has bought the AT&T's Developer Edition of Nokia Lumia 920 from Craig's List and it was running on the upcoming WP8 GDR3 Bittersweet Shimmer update. He shot a video of the new features, while wearing a PSY mask with a hateful message to Apple. Anyway, the new features he found so far include the added notifications on the Glance screen (the...
Source: http://www.gsmarena.com/wp8_gdr3_update_caught_in_nokia_lumia_920_dev_edition-news-6755.php
