Xsigo Systems is the I/O virtualization company that developed a new approach to server I/O: the Xsigo I/O Director.  Xsigo I/O Director helps IT managers provision I/O resources on-the-fly without disrupting network and storage configurations, and without physically entering the data center.

Check out this video captured at their booth during Citrix Synergy 2011. 

And don't forget to check out the VMblog Citrix Synergy 2011 event page.