IBM's decision to allow open source developers to freely use hundreds of software patents was criticised as hypocritical by some anti-patent campaigners on Tuesday.
Google has joined the Open Invention Network (OIN) which will see it agree to cross-license open- source-related patents to other members free of charge.
Several open source luminaries have issued a warning over the implications of software patents, and the possibility of Microsoft unleashing 'patent WMDs' when it realises its business model is no longer viable.
Following some frosty responses to Microsoft's controversial patent deal with Novell last year, the software maker has begun a more aggressive attempt to persuade open-source software companies to license its know-how.
IBM has called for tighter regulation of patents and a review of intellectual property ownership issues in collaborative software development.
The software company has made a big show about opening up its APIs, but has it really changed its stance towards open source?
Although Sun Microsystems recently made software patents available for use by open-source developers, OSI founder Bruce Perens cautions that the patent picture is turning increasingly murky.
Richard Stallman says even if Sun and others follow IBM's lead and started defusing the patent minefield of software development, the battle against software patents must continue.
Alan Cox, one of the most respected figures in the open-source community, talks about GPL 3, software patents, the kernel development process and Linux on the desktop.
CEO Stuart Cohen talks about OSDL's efforts to head off patent claims against the community-developed operating system.
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