Okay, so we already told you WiFi was coming to the new RIM BlackBerry, but it's finally official.

The device, which RIM called the "first dual-mode cellular and Wi-Fi BlackBerry Smartphone" in a press release, will be thinner than the BlackBerry Pearl and feature a full QWERTY keyboard, large and bright display (320 x 240) and user-friendly trackball navigation system.

The BlackBerry 8820 also includes built-in GPS (Global Positioning System), RIM's latest media player enhancements, and a expandable memory slot that can support current and future generations of microSD memory cards. Most importantly, the device will combine EDGE/GPRS/GSM cellular and Wi-Fi connectivity for data access and voice support through UMA (unlicensed mobile access) for fixed-mobile convergence (FMC) service offerings from various wireless carriers around the world.