The data and voice-enabled BlackBerry 6750, which supports Java 2 Micro Edition (J2ME), offers users access to e-mail, short message service (SMS), dualband phone, browser and organiser applications.
The company is also providing a Web-based application with the device, which supports ISP e-mail accounts through the POP3 protocol.
BlackBerry Web client enables users to access various e-mail accounts through their handheld devices, configure settings and set up filters and automatic signatures.
RIM noted that enterprises running BlackBerry Enterprise Server would still have the ability to manage handheld devices that "prevent access to personal ISP accounts".
1XRTT networks offers a migration path between 2G and 3G capabilities, but some companies are still anticipating the data transfer rates of up to 2Mbps that true 3G provides, said Lawrence Surtees, a director of telecom research with IDC.
It is likely to find take-up in the consumer market - video games, mobile phones - but the real untapped potential is the enterprise market, which requires the better speeds of 3G.
"For the business market it's a first step. It's a prelude to even better, faster true 3G services which are still a few more years out," Surtees said.