Also, don't miss the Cisco report this was based on (linked in the article): <a href="http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-520862.html" rel="nofollow">http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/...</a>