As most people know Microsoft has an anti-Linux program called "Get the Facts" featuring case studies arguing the Windows case. When one of those, wearing the title: London Stock Exchange chooses windows over Linux for reliability, arrived in my email last week, I was sufficiently intrigued by the relative reliability claim to read the thing.
Here's the summary quotation attributed to the customer: LSE CIO David lester:
http://blogs.zdnet.com/Murphy/index.php?p=739