T-Mobile has announced that its first Windows Phone Mango smartphone in the HTC Radar 4G will be launched next week on November 2nd for $149.99 after new 2 year agreement before an additional $50 mail-in rebate, bringing the total to $99.99. The phone features a 3.8 inch WVGA resolution touch display, second generation Qualcomm Snapdragon processor at 1GHz, 5.0 megapixel camera with dedicated camera button, LED flash and 720p video capture along with Wi-Fi N radio.