It would be nice to know that both the sets run Windows Mobile and will be upgradable to Windows Mobile 6.5.The unique TouchFLO 3D interface by HTC is used as an overlay on both handsets to Windows Mobile 6.1.

The features of Diamond 2 include a 3.2-inch VGA display packed into a profile 13.7mm thick. A touch-sensitive zoom bar is used by HTC in order to achieve fast webpage, email, and photo zooming. Furthermore, the entire device is optimized for one-handed use. It is being ensured by the maker that the device which provides a 5-megapixel camera, expandable memory, gravity sensor and an ambient light sensor has 50 percent better battery life than the original.
It should be mentioned here that the Pro 2 is heavily optimized for email use and features a 3.6-inch widescreen VGA display and a large QWERTY keyboard.
The users are allowed to move from email to conference calls easily via a new feature called Straight Talk that integrates email, voice and speakerphone use.
The users in Europe and Asia would be able to avail the Diamond 2 in early Q2 2009 with other markets getting the device later this year. All major global markets will receive the Pro 2 this summer. There has been no word about the pricing as of now.