T-Mobile USA will introduce today a Wi-Fi-based service for businesses, a move aimed at replacing landline phones with BlackBerry handsets and help businesses consume fewer wireless minutes. "They don't have the disadvantage of trying to protect their revenue streams" from fixed-line networks, said analyst Rob Arnold of Current Analysis. Separately, Samsung revealed that T-Mobile will carry the Samsung Behold II, an Android-based phone armed with the handset maker's TouchWiz UI widget technology.

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