Research In Motion (RIM) today announced the BlackBerry 8820, the first BlackBerry to combine EDGE/GPRS/GSM cellular and Wi-Fi connectivity for data access and voice support through UMA (unlicensed mobile access). Featuring RIM's thinnest smartphone design with a full QWERTY keyboard, large and bright display (320 x 240 px), trackball navigation system, the BlackBerry 8820 also includes built-in GPS (Global Positioning System), RIM's latest media player enhancements, and a microSD / microSDHC (m...