The Treo 600 was a landmark device for Palm, and was a key in Palm's acquisition of Handspring who developed the Treo 600. Palm made the phone available worldwide to most carriers, both with CDMA and GSM at approximately the same time. Palm established themselves as a major PDAPhone player with the Treo 600 and also brought ease of use and one handed operation that set a new bar for the competition. The specs are similar for the GSM and CDMA versions of the Treo 600.