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The BlackBerry is a wireless handheld device introduced in 1999 which supports push e-mail, mobile telephone, text messaging, web browsing and other wireless information services. It was developed by Research In Motion (RIM) and delivers information over the wireless data networks of cellular telephone companies. BlackBerry made headway in the marketplace by first concentrating on e-mail. RIM currently offers BlackBerry e-mail service to non-BlackBerry devices, such as Palm Treo, through BlackBerry Connect software.
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