The members might be interested in the fact that the Nexus is the first component of the Data Center 3.0 architecture by Cisco and the successor to the Cisco 6500 switch. The real news is that the 6500 was a "jack of all trades" while the Nexus will be focused on one job "virtualization". This link to an InformationWeek article adds the details if interested.

http://www.informationweek.com/showArticle.jhtml;jsessionid=CW42LV3FRFE12QSNDLOSKHSCJUNN2JVN?articleID=205918126&queryText=nexus