Your definition of an Open Source "luni" (I presume you mean "loony" or "luny") seems to be anyone who considers GNU/Linux to be superior to Windows--which, IMO, it is.
I do not speak from ignorance. I used Windows for years before I switched to Linux and even now, I work for a company that is almost 100% Windows where I write code primarily in C# and ASP.
Stupid is posting an article claiming Linux will win "the battle with Microsoft", then trying to claim knocking MS down from 90 percent to 87 percent is somehow victory.
I don't think that Microsoft will lose its market superiority, but knocking them from 90 to 87 percent would, in fact, be a victory. Microsoft has one advantage: their products are not having to go head-to-head against much of anything. Most department stores or tech stores (Best Buy, Circuit City, etc.) stock mostly or all Windows, with some having a few Macs laying around somewhere. The reason for which is, obviously, that their OS comes pre-loaded on every system. This is, from a marketing/PR point of view, a very difficult problem to overcome. If they lose 3% of their market share, it means that more people are pro-actively making the switch from Microsoft to an alternative. They are becoming more aware of the possibilities. Three percent may not sound like much and, if you are going for market dominance, it isn't, but 3% of computer users is a lot of people, nonetheless. Does three percent bring down Microsoft? By no means, but it would be a victory for OSS.
Actually I should have said "free software lunis", as that is ultimately what they are, but they hide under the sheep's clothing of "open source".
Microsoft is bound to eventually lose some of their market share, there's simply nowhere to go up from ~90%. When they do, it won't all be to free software like Linux, but to other products like Apple OSX and Sun Solaris instead. Hopefully most of it will, since those are American products owned by American companies, and not a foreign born fake like Linux.