Released for T-Mobile, the RIM BlackBerry 7105t is the successor to the 7100t that adds enhanced Yahoo! Mail access allowing customers to manage their personal and corporate e-mail. As the first internet e-mail provider to take advantage of integration options available via BlackBerry Internet Service, Yahoo! can provide real-time, push-based delivery of email to T-Mobile customers. The BlackBerry 7105t also puts top-of-the-line features, such as speakerphone and Bluetooth technology into a sleek and stylish handset.