The HP Voice Messenger and the Data Messenger are two GSM fleet phones that look fairly staid. The Voice Messenger, show here:

* Small and simple : Dial and type quickly with the simple and useful 20-key keypad. Text and email1,2 easily with intelligent predictive text that “learns” your words and style from messages and emails.
* Smart and practical: Use email, phone, and Internet1,2 with advanced wireless technology in many countries around the world. Where WiFi is available[k1], connect without using data plan minutes. Instant Message with Windows Live.
* Simplify your life: Skip the new phone learning curve with familiar Windows Mobile 6.1 and use Microsoft Outlook Office Mobile to synchronize contacts, appointments and tasks with your PC.
* Find your way: Find your way with integrated GPS3.
* Enjoy the extras: 3.1MP auto focus camera with 5X digital zoom and flash LED. Convenient Micro-SD card slot for storage up to 8GB (card sold separately).

MobilityToday has specs on the other device which is essentially the same except with a slide out keyboard. At least the iPaq name is still alive.