ITreviewed posted a review on the HP iPAQ Voice Messenger

Busy professionals constantly flooded with e-mail and always looking for ways to quickly and easily manage it and move on with their day. HP's iPAQ Voice Messenger is an attractive and small form factor candy bar phone with a solid operating system and snappy processor. And thanks to its strong voice features it gives mobile users an alternative way to manage various types of communications handsfree. Performance was very good, voice quality was superb, and it did a good job of holding onto a connection in weaker signal areas. Unfortunately, the iPAQ Voice Messenger is not without serious flaws. The keyboard is a touch on the small side, especially for heavy data input, and the touch-sensitive D-Pad is a nightmare - sometimes it registers movements perfectly, but other times it takes multiple goes to get it to respond. As this is the device's main navigation control, it won't take long to infuriate you. The lack of a standard 3.5mm headphone jack is another annoyance. HP's iPAQ Data Messenger would be a better choice for those who prefer a 'proper' keypad, but for those wanting a relatively powerful business phone with added smartphone functionality, the iPAQ Voice Messenger is probably worth a look - just make sure you try it before you buy.

HP iPAQ Voice Messenger reviewed