It's interesting as there have been some recent articles[1] about Dell's Enterprise platforms gaining more ground.
[1] http://www.datacenterdynamics.com/focus/archive/2012/02/dell%E2%80%99s-enterprise-revenue-grows-overall-q4-results-weak
[2]http://www.zdnet.com/blog/btl/dell-closes-force10-purchase-preps-networking-push/56313