True. But also at the end of 2013 even more employees will be bringing their own devices - phones and tablets to work so they don't have the enterprise lap top.

True. But also at the end of 2013 even more employees will be bringing their own devices - phones and tablets to work so they don't have the enterprise lap top. These devices will run Android and iOS in a roughly 50/50 share of OS distribution. The enterprise supports the work their employees need to do by giving them the traditional desktop tools - this is Microsofts market and always has been. But more and more those tools are overkill for the job the employee needs to accomplish so they are turning to the tools that work for them in their personal lives.