IT staffers at Allen Matkins are working to "make sure users know that there are already multiple ways to use remote e-mail" through laptops or any Internet-capable device that can access the law firm's secure Web mail. "But I have to say, BlackBerry makes it so much easier," he said, noting that the device's small size and the instant access to e-mail is very convenient.

Gillman said he hopes that RIM can devise a work-around that avoids patent infringement, because it would be easier to install new software for the RIM service than to find an alternative.

In a statement Wednesday to Computerworld, Mark Guibert, vice president of corporate marketing at RIM, said the company does have a work-around design that is "ready and will be implemented if necessary" and said that RIM will "protect customer interests against NTP's threats." NTP, meanwhile, is hoping that a lower court will issue a permanent injunction against RIM.

Neither company would discuss the possibility of a settlement.

With that backdrop, other IT managers bemoaned the possible loss of RIM service, and -- like Gillman -- said their backup plans remain uncertain since many expect to have plenty of time to formulate backup options. All the IT managers interviewed by Computerworld consider the alternatives a distant second in usability.