Microsoft and HTC have unveiled the Windows Phone 7-based HTC HD7, set to be available on T-Mobile's network in November.
The HD7 is one of five HTC smartphones created to run on Microsoft's new Windows Phone 7 operating system, unveiled at a news conference called to mark the launch of the new OS, and is the largest by far.
The device will come with 4.3-inch touchscreen display, a 5 megapixel camera with autofocus and flash, support for high-definition video recording and a stand to help users watch media content.
The HD7 comes with 16 GB of storage and is powered by a 1GHz Qualcomm SnapDragon processor. The smartphone also comes with Wi-Fi support, a built in FM radio, GPS, Bluetooth features and will ship with Netflix, T-Mobile TV, Slacker Radio, Xbox LIVE and Zune software pre-installed.
The device is set to be available from T-Mobile in the US, and from Orange, O2 and T-Mobile in the UK.
The Windows Phone 7 operating system has been labelled by many industry analysts as Microsoft's last attempt to succeed in the smartphone market.
The software giant has pledged $400 million to promote the OS as it enters competition with already established rivals Apple, Research in Motion, Nokia and a multitude of devices running on Google's Android platform.