Apple and RIM are on a collision course as the two companies go toe to toe vying for enterprise messaging market share. RIM has long held the corporate high ground with its dominant BlackBerry Enterprise Server technology and ubiquitous handsets. But Apple is sending iPhone to business school, adopting Microsoft Exchange support that is certain to give Apple the competitive advantage it needs to challenge RIM's BlackBerry industrial complex.

This puts Apple in a unique position. Until now the company has narrowly focused its product strategy at consumers, not business. Apple and enterprise go together like Dairy Queen and Lactose intolerance, but iPhone has achieved the kind of sweeping success and brand awareness that makes it marketable to business customers, given the right pedigree of tools.

The combination of iPhone's consumer appeal and business smarts could produce a perfect storm for Apple. Will it be enough to topple RIM?