In the fall, I wrote about Apple's (Nasdaq: AAPL) ambitions in the enterprise market, speculating that enterprise sales might be the company's next multibillion-dollar opportunity. On Apple's last conference call, COO Tim Cook reported that two-thirds of Fortune 100 companies were piloting or deploying iPads, and an even higher portion -- 85% -- were doing so with the iPhone.

Since then, reports that businesses are adopting Apple products show the company gaining momentum. Pilot programs have morphed into large-scale purchases, making the iPad, in particular, as popular with corporate CIOs as it is with 6-year-olds.

The Wall Street Journal reports that medical-device makers such as Boston Scientific (NYSE: BSX), Medtronic (NYSE: MDT), and Zimmer Holdings (NYSE: ZMH) are buying thousands of iPads, seeing the product as a more effective tool for their sales forces than the laptops and printed materials they have traditionally used when meeting doctors to discuss their products.

Meanwhile, a Bloomberg report on iPad and iPhone adoption in the financial-services industry suggests that the long love affair the industry has had with Research In Motion's (Nasdaq: RIMM) BlackBerry may be on the rocks. JPMorgan Chase (NYSE: JPM) is buying iPads for its investment bankers, and British bank Standard Chartered has dropped the BlackBerry in favor of the iPhone for its employees.

Apple has been beefing up its enterprise-sales team. It has also been working to incorporate enterprise-friendly features into its operating system -- note the remote lock-and-wipe feature that came with the recent release of iOS 4.2.

Although Apple is still miles away from being as dominant a presence in the enterprise market as it is in the consumer market, the company's efforts to penetrate the enterprise market are bearing fruit. A new multibillion-dollar snowball appears to be heading down the mountain.   

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Fool contributor April Taylor owns shares of Apple. Apple is a Motley Fool Stock Advisor pick. The Fool owns shares of Apple, JPMorgan Chase, and Medtronic. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.