Just over a year ago we created Siebel on Oracle VM. It was quite amazing feat - we had just announced Oracle VM at Openworld and we thought it would be beneficial to offer Siebel in a Virtualised form. I had a chat with Richard Exley from the High Availability Architecture Team and "Siebel to Go" was born. The task - "to have Siebel in a form that could be downloaded ready to run within an hour". Richard built the solution (in his garage...) and it was tested by Uma Welingkar (who stripped down a number of machines she found in the office, to create a networked virtualised environment). {Note: we don't normally build software this way]
Siebel on Oracle VM was released last year at LinuxWorld.
If you want to know why we did it - here is the really short slide deck I created when when we pulled the covers off the solution. Don't expect any technology slides. It's all about the business benefits.... you should read it as it focuses on Green computing more that the tech.