The Linux community is splitting — right down the middle, at this point — over Microsoft Corp.’s controversial claimsthat the open-source operating system infringes on patents it holds.
Last Tuesday, Paris-based Mandriva became the third Linux vendor within five days to say it isn’t interested in signing a licensing deal with Microsoft to avoid possible infringement claims.

The Linux community is splitting -- right down the middle, at this point -- over Microsoft's controversial claims that the open source operating system infringes on patents it holds. On June 19, Paris-based Mandriva became the third Linux vendor within five days to say it isn't interested in signing a licensing deal with Microsoft to avoid possible infringement claims.

Few events have created more fodder for the blogosphere, more fuel for Microsoft critics and more emotional responses than the Microsoft patent deals with Novell, Linspire and Xandros. While putting together a list of things people hate about these deals is easy, generating a list of positive aspects is much harder.

Microsoft's partnership with Novell got a lot of people in the open-source community fired up. Since then, Microsoft's Linux deals with Linspire and Xandros have just thrown gasoline on the fire. Now, it appears that Red Hat, the leading Linux company and the most vocal opponent to Microsoft wheeling and dealing, tried to make its own deal with Microsoft before the Novell one was released.

For sometime there, I generally figured that once the next revision of the GPL came about, all of these deals that are being made with Microsoft will eventually be put to bed. I was also delighted to see Mandriva standing against the alleged patent violations that Microsoft brought up time and again.

Apparently Microsoft has a thing for conservative Japan. Just when I thought Microsoft had closed patent cross-licensing deals with every Japanese firm ever to have considered corporate existence, Microsoft surprises me with a deal with Onkyo.

Several companies that have deals with Microsoft and may be harmful to GNU/Linux as a result

It's a familiar story. Microsoft does a secret deal with a company over patent licences. Almost no details are provided about which patents, how much money has changed hands, or why, except for one vaguely worded press release that talks about how such secret deals benefit the customer through openness and innovation.

Microsoft's relationship with the open source development community continued to evolve last month, with the company adding three suppliers of the Linux operating system to cross-licensing agreements. So, on balance, how will these patent pacts impact enterprise developers day-to-day?