By Judy Mottl:

Research in Motion (RIM) is moving to retain its already dominant hold on the enterprise mobility market, readying a new version of its BlackBerry Enterprise Server that promises to reduce IT costs and labor.

RIM (NASDAQ: RIMM) plans the new BlackBerry Enterprise Server 5.0 (BES) to ship during second quarter with a host of new management capabilities. Those include over-the-air device activation, downtime scheduling and simpler role administration, according to a presentation detailing the launch. RIM spokespeople were not available to comment further on the release by press time.

RIM’s news comes at a time when the BlackBerry maker is feeling the effects of slowing IT spending. The company said yesterday that it’s business customers are holding off on upgrades — a fact that it expects to negatively impact its next quarterly results.

But as corporate layoffs and budget slashing — especially within RIM’s large customer base of financial companies — is impacting tech spending, enterprises are looking for more cost-efficient tools and technologies.

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