BlackBerry RIM 957 5MB (RIM Proton) Operating system: RIM BlackBerry 2.0; Chipset: -; CPU: Intel 386EX; GPU: -; Sensors: -; Messaging: -; Browser: -; Radio: Yes; GPS: -; Java: -; Colors: -; More Feature: - Mobitex 900 network- Pressable rotary scroll wheel- RS-232; Display ...