The Linux desktop more than anything else needs an extensive support of its die hard proponents which will be helpful in creating a buzz and hence serve the purpose by establishing a strong word of mouth.
Linux plays a promising role of delivering higher performance, better security, freedom from being locked into a single vendor and ultimately lowering the costs.
If you belong to the "<strong>Linux Community</strong>" bandwagon, you may just have a different opinion on the fact that there are lessons to be learned from Windows and Mac