Ben Gray, analyst at Forrester Research, says that Mac OS X accounts for 4.5 percent of the business operating system market, 3¾ times their share in January 2007.
Computerworld notes that all this has happened with one thing notably absent: an enterprise strategy. "I haven't seen anything from Apple that seems to show it's attack[ing] the enterprise market," Gray said.
He says the gains in market share are due to two trends: client virtualization (using software like Parallels or VMWare) and the idea that corporate IT departments are more willing to support a broader range of hardware and software.
"In the end, [IT departments] want their employees to be as productive as humanly possible, so they'll approve tools that people are more comfortable with," said Gray.
In related news, Windows' overall share of the corporate market dipped slightly from 95.6 to 94.9 percent for the same time period.