T-Mobile US is now selling Microsoft Lumia 640 device for $129 without contract and for free with their 2 year contract of $5 per month.
Features of the Lumia 640 include:
• Crisp 5” HD display for ultimate viewing experiences
• 8 MP camera with LED Flash to capture those perfect moments
• Built in popular Microsoft services like Skype, Xbox, Cortana, Office and more
• Windows Phone 8.1 operating system
• 4G LTE capability to share your ideas faster
Order it here from T-Mobile.