So, a business strategy that will take 15 years to come to fruition? Who knows? It's as likely to happen by accident as anything else. (And yes, the odds seem long.)
Consumerization (apologies for the buzzword) of internal business technology is an undeniable force that even slow-to-notice Gartner recognizes.
A few things are conspiring to help move Macs into the enterprise, even in older companies:
* the Internet. (the biggest reason of all. So much of info workers use all day is on the web. Good ol' I barely-care-what-OS-you're-on web).
* desktop virtualization like VMware Fusion made it so employees who could do 90% of their work w/out Windows, could still login to that one timekeeping app that required Windows.
* the iphone (especially) + android were so much better, so far ahead of Blackberries that Exchange-friendly connectors were written.
* BYOC (Bring your own computer) movement. Multiple enterprise IT departments, even in old school companies, are using a system where a stipend is given to an employee to buy his/her own computer.
* Google Apps (see also: The Internet). But more specifically, Google Apps dislodges the Exchange/Outlook roots that are the number one reasons big corps can't leave Windows.
I'll call BS on that. I work for a large multinational with a 20+ year history of PCs in the workplace, and Macs represent a growing proportion of the workforce laptop pool. They still have to be special-ordered, but I've yet to hear a request denied, and IT will support them. Meanwhile, iPads are the incentive du jour, and iPhones have just been added to the approved list, where Nokia and Blackberry once ruled. I have none of the above, but I see the future, and the future is white.
[Edit: And why is everyone talking about servers? There's no mention in the linked article, or the original about servers...]
This is one case where I'm glad to be called BS on!