Microsoft had run huge ads on how LSE was using .NET and Windows in critical financial applications. Within a year LSE had suffered crashes in the same critical areas.
In fairness, though, it may not have been MS' fault - crappy programming is crappy, no matter the underlying OS. And Linux fanboys should wait to see if the new system has roll-out issues...
http://www.a-teamgroup.com/article/voltaire-powering-fastest...
Can you elaborate on this? Are they developing a fork of the Linux kernel? A new Linux distro? Or could it be that they are developing the trading "platform", using a commodity Linux distro?