A published report out of Vietnam shows the GDR3 update and Bittersweet shimmer on a Nokia Lumia 520; the GDR3 update from Microsoft allows Windows Phone handsets to sport 1080 x 1920 resolution on larger screens, and supports multi-core Qualcomm Snapdragon processors. The Bittersweet shimmer update comes from Nokia and adds new features to Nokia Lumia models...Source: http://www.phonearena.com/news/Bittersweet-shimmer-and-GDR3-update-appear-on-Nokia-Lumia-520_id47457
