Palm is running a 4-day sale on the unlocked GSM Treo 680 from now until Sunday, November 25, 2007. The graphite Treo 680 can be purchased directly from the Palm online webstore for $379. (The Treo 680 without a service plan is typically $449.)
The unlocked Treo 680 can operate on any GSM wireless carrier that offers voice and or data services. (You will need an existing SIM card or obtain one when you sign up for service.)
For more information, including the technical specifications for the Treo 680, please visit the Palm website.