The reason cited by Horace Luke, HTC's Chief Innovation Officer, was that the resistive touch screen is better for Asian character recognition.

Removing the stylus when in a phone call both turns on the screen and starts up the notes application (if so selected as an option by the user).

[19] The browser can change the orientation of the page between portrait and landscape modes depending on the way the accelerometer senses the device is being held (not in Internet Explorer).

Teeter is a videogame utilizing the accelerometer of the Touch Diamond in which the player guides a ball to a target by tilting the device, avoiding obstacles such as walls and holes.

The XDAndroid project makes it possible to run Android on HTC Windows Mobile phones, including the Touch Diamond.

Over one million units were shipped in six weeks, compared to the HTC Touch, which took 5 months to reach the same milestone.