Some years ago (more precisely in 1998) the confusion english-speaking people start making with the term free when applied to software led some members of the free software foundation to create a new term: open source ( http://www.gnu.org/philosophy/free-software-for-freedom.html )The great concern was that people was misunderstanding free as in free of speech, with free as in free beer (see wikipedia: http://en.wikipedia.org/wiki/Free_and_open_source_software ).The free here relates to the the liberty of using and sharing your software, in a way that goes against proprietary copyright (and patented) software. It was first introduced by Richard Stallman, in 1986. The core is the set of freedoms:Freedom 0: The freedom to run the program for any purpose.Freedom 1: The freedom to study how the program works, and change it to make it do what you wish.Freedom 2: The freedom to redistribute copies so you can help your neighbor.Freedom 3: The freedom to improve the program, and release your improvements (and modified versions in general) to the public, so that the whole community benefits.Well, we all know about that (at least those who is following this discussion since ever).In my opinion, the term open-source clarified us. But it was already assured by Freedom 1.In other languages (like spanish or portugese, for instance), we can say free as libre or livre. And the other meaning of free, as in free beer, as gratis. So, for others, there was never a confusion (actually, only when reading english articles about it).Freedom number 2 guarantees my right to redistribute copies at will. I understand that as I don't need to pay the owner any royalties for every copy I give away to my friends or students. And of course, we will agree with that. This, ultimately means, that I can give free (gratis) copies, or also I can charge for copies (support, media, etc.).Now, If something can be given away for free (gratis), then it is free (gratis). No matter if someone, or some enterprise, wants to sell, you still have ways (sites, downloads, friends, etc.) to get it for free (gratis).So, in my non-english point of view, we have 3 different things here. The most important, undoubtedly, is the free (freedom, liberty, libre, livre, so you can all the stuff you want) quality of the software. The other, is being open-source (so you can  see the code inside). The last one IS another GREAT quality, that is, there EXIST free (gratis, non-chargeable) software.Being free (gratis) does not mean it is forced free (gratis). You can have people who sells, who pays, and who gets/sends for free. Still, it is a quality.What I don't understand is why, after so many years, people from FSF are still cautious to say that there is free (gratis) software also. Yes, free as in free beer. If it is a quality why hide it? Just to prevent confusion? Well, let me tell you the news: confusion was already made since the beginning. I was alive and interested in the subject when it started, and I remember lots of discussions about this free being free of charge, or free of restrictions.After lots of consulting, lawyers helped to write the first license in terms that could be used in court, introduced the term copyleft, and made it clear that free is not about price.At that time, because of the novelty, ok, I agree to emphasize this half-part of the free. But now we are over it. Isn't it time to tell people that we ALSO have free as in free of charge.Three qualities is better than two: livre/gratis/open.So, why don't we tell people that free software can be just free?Edited:More objectively: 1- Is a free (freedom) software necessarily free (gratis)? 2- Is a free (gratis) software necessarily free (freedom).The first one is the important question, as the second is just there to hold fast typers (we all know the answer).Another question raised from the discussion: Is free (gratis) a quality? (I assumed that as taken for granted in the question introduction)
free as in free beer
open source;linux;foss
From an averarge user point of view, you only care for free beer. And you prefer usability to openness.Even not taking them into consideration, programmers are the smallest group involved in the software market (just thing of management, legal departments, accounting, marketing).And for all those people free means gratis, which is why the distinction is extremely important. Because there was proprietary gratis software out there prior to the definition of free software. For the lack of a better word, they went with free and they had to redefine it clearly. Freedom is priceless, while gratis software has a price of 0. This is quite a difference, because the latter can be thought of as purchasing a software (at no cost).In its radicality, it was a fairly new approach (before software just happened to be free unintentionally).It should be noted, they combine a lot of freedoms, which are orthogonal. Free in their understanding is not so much the opposite of closed source - open source is. Free is the opposite of proprietary: the software is not the propriety of someone, it is an non-owned good, that everybody can use in any way he pleases. However, from the perspective of a programmer, a gratis closed source software however can hardly be considered free, because only the source owners are free to modify it.For example, there is proprietary open source software. It means, you get a software along with its sources, along with restrictions how you may use that source (exclusion of distribution might be one). And that software itself might have a price tag or not (the latter being unlikely).In the web development scene, this is not uncommon, especially for HTML and Flash templates, which are sold as sources for further modification.But I recall a case of proprietary gratis open source software: The Adobe Flex SDK (a framework, toolset and compiler to programatically create Flash content). Parts of it were distributed as source without cost, but redistribution was forbidden by the license (for some strategic reasons I suppose).So while there is nothing wrong with software shipping without cost, and you may call it free if you wish (normal people will understand exactly what you say), the FSF claimed its own definition of the word, to encompass all the individual freedoms simultaneously, in contradistinction to software, that doesn't, and is thus not free in one aspect or another, or in their understanding, simply not free in contradistinction to their ideal.