After building up the excitement, Sprint has finally unveiled their mysterious new phone. The first CDMA Windows Phone 7 will be available on Sprint beginning next month. The phone, known as the HTC Arrive or the HTC 7 Pro, will be the first WP7 device to run on a CDMA network. It has a 3.6″ WVGA display, and also includes a slide-out QWERTY keyboard, which follows Sprint’s current trend of releasing keyboard toting smartphones.

Just like all the other WP7 phones, it includes a 1GHz processor, 16GB of internal storage, and a 5 megapixel camera. The HTC Arrive will be available on March 20 for $199.99 with a two-year contract on Sprint.

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