Although Dell's position here is that the company is "listening to its customers" and now will be offering Linux as an alternative to Microsoft's Windows Vista operating system, the sliver of Dell customers wanting Linux, at least right now, is largely insignificant. It's generally known that the vocal minority can have the largest voice, and that is what is happening here.
It's very true that Linux (which I use on occasion) is every bit as good and robust (and easy to use) as Windows. There are arguments back and forth on everything from software applications to hardware support between Linux and Windows, but when the silent majority wants what they're used to (namely, Microsoft Windows...period), offering Linux on Dell consumer PCs will be a great marketing tool for the techno trendsetter but not to the average Joe consumer -- or the business PC user who needs that install of Microsoft Office at all times (or, funnily, the free OpenOffice suite).
Does Dell run the risk of angering Microsoft -- one of its largest customers -- by now offering a Linux option when a customer builds a PC at the Dell website? Probably, but I would think that frustration is limited. If (not when) more than 25% of Dell customers start choosing Linux on their PCs instead of Windows, then Microsoft may have a reason to be concerned. I don't think we are close to that happening at all, but one thing is for sure -- the vocal minority has spoken, and they want Linux.

This article over at 

