Wirefly.com is taking pre-orders of the HTC Arrive Windows Smartphone for Sprint for $49.99 (489.99 contract free, 199.99 – 150 instant savings carrier subsidized) with a new two year contract for a limited time. Upgraders can get it for $149.99, that’s still $50 cheaper than direct from Sprint. Shipping is Free.

The HTC Arrive smartphone is the first device for Sprint based on Windows Phone 7. The Arrive offers an innovative design with a slide-out full QWERTY keyboard and tilt-up display and provides an incredible experience leveraging well-known Microsoft services like Microsoft Mobile Office, Zune, and XBOX Live. Windows Phone 7 features Hubs for quick and easy access to your most valuable content including People, Pictures, Games, Music, and Video, Office, and Marketplace. Additionally, the Start screen is customizable with Live Tiles that come to life with real-time updates. Depending on the app, the Live Tiles show pending messages and appointments, news and weather, or game and friend status – all continuously refreshed by the Internet.