In a recent note, Anne & Lynn Wheeler said:

> Date:         Tue, 5 Dec 2006 09:55:07 -0700
> 
> IBM sues maker of Intel-based Mainframe clones
> http://www.eetimes.com/news/latest/showArticle.jhtml;jsessionid=BKMIXSNECXW0OQSNDLSCKHA?articleID=196601610
> 
> from above:
> 
> In its second major patent enforcement action in as many months, IBM
> is quietly suing an Intel-backed maker of computers that uses a
> version of IBM's high-end mainframe operating system reconfigured to
> run atop Intel's industry standard processors, InformationWeek has
> learned.
> 
And:
       ...
   In a lawsuit, IBM alleges that the mainframe "emulator systems" offered
   by Platform Solutions Inc. violate IBM patents on its z/OS operating
   system as well as patents relating to its previous mainframe operating
   system, known as OS/390.
       ...
It's interesting that they appear to be pursuing violations of software
patents rather than hardware patents.  Why?  How?

-- gil
-- 
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