http://www.sqlpass.org/24hours/fall2012/ . This event gave you a glimpse into the level of forthcoming technical content to be covered at the PASS Summit 2012.
I was very interested in the session delivered by Denny Lee on the Introduction to Microsoft’s Big Data Platform and Hadoop Primer. He defined Big Data as 4V's volume, velocity, variability and variety utilising techniques and technologies that make handling big data at extreme scale economical. Big Data is allowing us to ask new sets of questions. He discussed Scale up and Scale out commoditized distribution.
To find out more about Microsoft's product https://www.hadooponazure.com/ .