text: The Squeeze On BlackBerry (BusinessWeek Online) BusinessWeek Online - Mike Lazaridis and James L. Balsillie, the co-CEOs of Research in Motion Ltd. (RIM.) (RIM), have plenty of reason to feel on top of the world. After 20 years spent in the quiet university town of Waterloo, Ont., developing technology to deliver wireless e-mail, their BlackBerry gizmo is an outright phenom. What the iPod is to mobile music lovers, the BlackBerry is to workers on the go. For the fiscal year ending in February, company sales should more than double, to  #36;1. ...