Interestingly, there are other voices that seem to report the contrary. http://www.linuxdevices.com/ for example features the "Great Gadget Smackdown" where the numbers of embedded deployments of Linux vs. Windows in end user devices are compared.

This is interesting stuff, as Linux, although behind Windows embedded in certain device types like smartphonse, is constantly gaining market share, and clearly leads in devices like firewall, router and wifi appliances.

-FreakGeek