Some new changes to the upcoming Windows Phone 8 General Distribution Release 3 have surfaced along with information on Nokia's Bittersweet shimmer firmware. Aside from support for 1080p displays and more advanced chipsets, GDR 3 brings support for 3 medium or 6 small tiles on one row for devices with WXGA (1280 x 768) or higher resolutions. That means the Lumia's 920, 925, 928 and 1020 will...
Source: http://www.gsmarena.com/nonofficial_changelog_reveals_some_new_wp8_gdr3_features-news-6933.php