Todd Bishop looks like the first of the bloggers to make mention of the settlement.
http://blog.seattlepi.nwsource.com/microsoft/archives/144577.asp
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Microsoft has reached a settlement in a patent-infringement lawsuit filed last year by Vertical Computer Systems, according to a filing by the mediator in the case: PDF, 1 page. The Fort Worth, Texas, company's complaint alleged that Microsoft's .Net development system violated a patent issued to Vertical in November 2004.
The court docket doesn't reveal financial details or other information about the settlement. I've contacted a Microsoft representative and Vertical Computer's lawyer, and I'll update this post depending on the response.
Here's a copy of the original complaint: PDF, 4 pages. This InfoWorld article from last year has more background on the case.
(Thanks to the tipster who alerted me to this.)