Wingfield's first paragraph discusses Apple's switch to Intel processors and the ability to run Windows on a Mac.  He moves on to describe how small businesses, education customers, and professionals are switching to Macs.  He also states the following:

"Helping Macs gain a bit of ground within the workplace are a growing array of programs that let the machines run Windows or Windows applications on Macs with little loss of performance. Last April, Apple began offering a free test version of a program called Boot Camp that lets users run Windows on their Macs if they own a copy of the Microsoft software, though users can't operate both Microsoft and Apple operating systems at once. Apple plans to integrate Boot Camp into a new version of the Macintosh operating system, dubbed Leopard, due out this spring."

Wingfield then goes on to describe how Wilkes University is making the switch to Macs.  The article then moves on to an example:

"Smaller-scale Mac fans also see the benefit. Ian Vysick, a senior audio engineer for a television-production company in New York, has bought three Mac laptops within the last year for his and his family's personal use because of Apple's consumer-friendly software and fewer hassles from viruses. Then Mr. Vysick found out he could run Windows simultaneously with the Mac operating system on his Apple computer using the $80 Parallels Desktop for Mac software. He now takes his personal Mac laptop to work, where he runs a Windows-only program for configuring an intercom system used during TV productions. Unlike with Boot Camp, he doesn't have to shut down and restart his computer when he wants to run Windows."

The article also discusses Apple's Mac shipments over the past few years:

"Apple is making small inroads in the professional market with its critically acclaimed line of Mac desktop and laptop computers, and even slight market-share gains can bring meaningful new business to the company. Last year, Apple accounted for 4.4% of all new PC shipments in the U.S. professional market, up from 3.6% in 2005 and 3.2% in 2004, according to the research firm Gartner Inc. Apple's share of total new PC shipments in the U.S. jumped to 5.4% last year from 4.5% the prior year, Gartner says. Nearly all of the rest of the market is Windows"

Wingfield's statement about performance, viruses, and security:
"Apple's move to Intel microprocessors -- which act as the brains of PCs -- has helped the Mac business by giving the machines a performance boost. Macs may also have benefited because they have been largely free of viruses and other security woes that plague Windows PCs"

The article then wraps up with a discussion of virtualization.  It's a nice read that can be found at the WSJ.

Related Articles:

• Wilkes University to replace all PCs with Macs
• Washington Post: Playing on Both Sides
• USA Today: Windows, Macs co-exist