The U.K.-based Financial Post reports that BlackBerry-maker Research In Motion is planning an accessory known as the BlackBerry Remote Stereo Gateway. The device is said to connect to a stereo while, at the same time, Bluetooth technology is employed to play music files from a multimedia-capable BlackBerry. The relevant section of the User Manual, as newly posted on the FCC Web site, tells us that: The BlackBerry Remote Stereo Gateway is designed to enable wireless transmission of music or other audio files from your BlackBerry device to your home or portable stereo. The BlackBerry Remote Stereo Gateway uses Bluetooth technology to establish a wireless connection with your BlackBerry device. After you pair the BlackBerry Remote Stereo Gateway with your BlackBerry...