I would second the idea that the population averages provided in Lazaridis et al should not be mixed with the data from the use of Eurogenes K=13 to create a unified map. The reasons, as was stated above, should be obvious. In addition, many of these figures are from people of mixed ancestry; while it may be fun to look at and compare such figures, their usefulness for telling us anything about the peopling of Europe is obviously very limited.
I don't agree with the criticism that maps indicating the prevalence of these three components by area are somehow not important because some minority ancestry isn't mapped. The point of this kind of analysis is to try to understand the peopling of Europe, and, so far, these are the major gene flows which have been identified as having given birth to modern Europeans.
I also think it might be a good idea if some caution was exercised in identifying the ANE figure as some indication of actual "Indo-European" ancestry, as we don't yet know (although we soon will) what percentage of the people in Samara were ANE at what period in time, and what percentage was in the people migrating into eastern Europe proper/the Balkans, Central Europe, Southern Europe etc. with their new language, if that is indeed what happened, as some of this ANE was already in Scandinavia, and certainly wasn't Indo-European, and we don't know if that contributed to the ANE in modern Scandinavians and perhaps Eastern Europeans and beyond. Also, as Le Brok mentioned, Hun, Magyar etc. invasions will also have contributed some ANE, and they weren't Indo-Europeans either. I think it has to be kept in mind that the people bringing the Indo-European languages to Europe and Asia Minor will have had varying degrees of the ANE component in them depending on the time period, along with unknown quantities of the other two components of the Lazaridis et al model.
Also, while I find even the provisional maps provided very interesting, I think we might want to keep in mind that this is a fast moving field because of the improved techniques for working with ancient dna and the development of new statistical models by some very talented people in the field. All of that means that there might be surprises in store. I personally am very interested in seeing what the autosomal results from Mesolithic, and, if we're lucky, Paleolithic samples from the Balkans will show; if we have another "native" European hunter-gatherer component, that will re-arrange all the calculations. I'm not saying that will happen, I'm just saying nothing would surprise me at this point.
Oh, there was a comment made upthread about EEF "sucking in all Middle Eastern" ancestry that isn't Neolithic in origin. I'm not aware of any major movement of "Near or Middle Eastern" people into Europe post the Neolithic, with the possible exception of some part of the Etruscans from Anatolia in the the first millennium BC, should that ever be proven. If the poster was thinking of any possible effect from the Muslim domination of the early Medieval period of parts of southern Europe, those people were mostly North Africans, and their effect, either because of a male dominance model, or because of subsequent expulsions, has been rather exaggerated, in my opinion.
I also think it should be clear by now that labeling EEF "Middle Eastern" or even "Near Eastern" is ludicrous if one means by that the modern people of that area, as it is based on an obviously incorrect proposition, i.e. that while Europe was subject to admixture from various sources, the Near East or Middle East remained static throughout its history. That's obviously not the case, as I've been saying for about five years now. It was nice to get some confirmation of that from the recent study on mtDNA in PPN samples, in addition to the studies showing increasing influence from the south in terms of yDNA, and the ANE data that has shown up per Lazaridis et al.
(In the case of the Etruscans, if they did come from Anatolia, given the late date it would seem to me that they would have probably brought some ANE as well. In that context, I would point out that the Tuscans have more ANE than either the northern Italians or the southern Italians. I would also point out that the EEF numbers for the Tuscans fit right within the Italian cline, indicating probably the slightly lesser effect of any Central European migrations on that area.)