In its "Windows 7 Sins" campaign, the Free Software Foundation has labeled Windows 7 as "treacherous computing," and accuses Microsoft of such acts as "poisoning education." But Apple is arguably even more closed than Microsoft, yet always gets a free ride from vociferous open source proponents. Can anyone explain this hypocrisy?

As laws are reformed, Microsoft is misusing the "open source" buzz (formerly Free software) to take over government contracts

Citrix-controlled Xen keeps bending towards Microsoft, which misuses "open source"

t seems we’ve arrived upon Microsoft open source. In the last couple of years, whenever there was discussion of Microsoft’s open source projects and efforts such as CodePlex or Port25, there was typically the standard open source response: it’s not OSI-approved; it’s not real open source.

Companies that are selling proprietary software present their products and themselves publicly as "open source"; some are actually linked closely to Microsoft

First branded as a communist plot, then derided as a form of cancer, before being upgraded to merely a 'grey spectre', free and open source software (FOSS) has had a pretty rough ride from Microsoft over the years. For many in the open source community, the company represents all that is troubling about closed source software development. Recently, though, there have been developments.

Open source fans are buzzing about Microsoft’s latest move to open its APIs, which follows along the path it has been on recently. Microsoft’s announced intention to open APIs to its Vista, .Net, Windows Server 2008, SQL Server 2008, Office 2007, Exchange and Sharepoint software is no-doubt big, but it also comes as more and more traditional software and even hardware vendors tailor their strategies to address the pervasiveness of open source software in the enterprise.

"We will do some buying of companies that are built around open-source products," Ballmer said during an onstage interview at the Web 2.0 Summit in San Francisco.

Microsoft does not keep its promises regarding “Open Source” in .NET and its MVP Miguel de Icaza is trying to ram .NET into Web browsers