AT&T Lumia 900 receives a new Windows Phone OS update May 9, 2013 by admin Tweet AT&T customers with a Lumia 900 can rejoice at the prospect of a new update. The carrier is pushing some fixes and a small number of actual feature updates for the Windows Phone 7.8 operating system. Read more… Neowin Related Posts:A quick look back at the reveal of the Nokia Lumia…I kind of miss how pretty Nokia Lumia Windows phones lookedMicrosoft announces the Lumia 535 and 535 Dual SimWindows 11 2022 Update is Microsoft's most…Xbox Alpha Skip-Ahead channel receives update with…