Microsoft has settled its case with Caldera, that litigious company that bought DR-DOS just so that they could sue (they’re also in the Linux business). Back of the envelope calculations indicate that the settlement cost Microsoft around 150 million bucks. Caldera also filed for a 57.5 million dollar IPO. Thanks to the bucks their lawsuit brought in, they’ll probably have the highest price to earnings ratio of any Linux or Internet company in the foreseeable future.