I started using Pocket PC Phone Edition devices about 3 years ago, but for the last several months I have been very happy with a much less expensive T-Mobile Dash WM Smartphone and haven't missed the more powerful Phone Edition too much. Many new Phone Edition/Professional devices were announced at 3GSM, but another device that I read about on the excellent Howard Forums site has just appeared in the HTC lineup. PDAdb.net has all the specs of this device which state a release date of June 2007. The HTC P4550 (Kaiser) sports Windows Mobile 6 Professional, 256 MB ROM, 64MB RAM, 2.8 inch 240x320 display, quad band GSM/UMTS/EDGE/HSDPA/HSUPA wireless radio, Bluetooth 2.0, 802.11 b/g, 2.8 megapixel camera, and integrated GPS radio. While these may be standard specs for the new Windows Mobile high end devices, the unique aspect that caught my attention was the way the display slid up and at an angle to reveal the full QWERTY keyboard.
I also read that the device is constructed of a metallic material so this may be an excellent road warrior's tool. The Kaiser is a successor to the excellent HTC TyTN and I am definitely going to keep me eye out for this device.