Known as the HTC Herald in other parts of the world, the T-Mobile Wing is the official successor to the now-discontinued MDA Pocket PC Phone, and was the first phone in the U.S. to run Windows Mobile 6 Professional (the new name for the Pocket PC Phone version of Windows Mobile).
Like the majority of current Windows Mobile PDA Phones, the T-Mobile Wing features a QWERTY slide-out keyboard, but the Wing has a new spring-aided design. There's no HSDPA or UMTS connectivity (T-Mobile has yet to deploy these networks), but the Wing is EDGE-compatible.
Other features include Bluetooth 2.0, 802.11g Wi-Fi and a 2MP digital camera.