The folks over at the FCC received the Nokia Lumia 520 with the model number RM-915, and of course, this would make it different from the Lumia 520 RM-914 that arrived at the FCC last month. Bear in mind that RM-914 is the model that was specially manufactured for Europe and Asia markets, and this means the RM-915 is about to roll out for North and South America, in addition to Australia. The Lumia 520 is touted to be the most affordable Windows Phone 8 from Nokia at this point in time, so with its impending release in the US market, let us see just how well it is going to do.