Following a successful run on the Home Shopping Network during which it sold out, next on the schedule for the Nokia Lumia 521 is Walmart.The big box discounter is selling the Windows Phone powered model for $150 off-contract, starting next week. That means that for $150, you own the phone without being handcuffed to a specific carrier for two years. Instead, you would be paired with T-Mobile's $30 per month unlimited data and text plan. But because the phone is all yours, you can leave T-Mobile at any time.Terry Myerson, head of the Windows Phone unit on Microsoft's campus, said that with Windows Phone competitive on price, the next goal is to use some form of Microsoft Office and the Xbox to make Windows Phone handsets either a more powerful work device, or an advanced toy. Noting that Windows Phone has a higher market share overseas, reaching 20% in some countries, Myerson said that carriers like AT&T and Verizon are hurting its chances of putting up numbers like that in the states. The two operators dominate wireless in the U.S. and the executive said that,"AT&T and Verizon have been great partners. But where the market dynamics are different, and where the operators play a different role, we have done better."
