Palm's Treo 680
Treo 680 is the smallest of Palm OS based device. Its GSM/GPRS/EDGE quad-band world phone. Palm OS features hundreds of downloadable apps, easy synching with your desktop contacts and email, games, a still-and-video camera, and user-friendly multimedia, text messaging, Yahoo! Music Unlimited built-in and Google Maps. One thing lacking is the missing GPS.
Should be available in US by the mid of 2007.