New Dual-Mode Blackberry Model

In an apparent bid to take on Apple's heavily hyped iPhone, the BlackBerry maker Research In Motion Ltd. released its first dual-mode, Wi-Fi/cellular device, the 8820. The new 8820 supports Unlicensed Mobile Access technology, which allows users to move between cellular and Wi-Fi networks without losing a connection. The company said the new model features support for EDGE networks as well as built-in GPS, removable memory cards and stereo Bluetooth.

RIM has been targeting the consumer market after enjoying success in the corporate market for years. Its push e-mail software allows customers to access their e-mail in real time. The 8820 will be RIM's first dual-mode smartphone and its thinnest with a full keyboard.

Although the company did not offer pricing information on the phone, it said the new 8820 will be through AT&T Mobility sometime later this summer.

The dual-mode cellular/Wi-Fi roaming appears to be gaining steam as T-Mobile USA Inc. recently announced the nationwide availability of its HotSpot@Home service, which is supported by two handsets and allows users to conduct voice calls while moving between cellular and Wi-Fi networks. Cincinnati Bell also offers such services.