When Stallman came to give a couple of talks in May, someone from the public asked him about which GNU/Linux distribution would recommend to the people in favor of Free Software, and he suggested Ututo-e, as the only one that was free (according to the FSF). I bet that 99% of the audience had never heard about such a project, mainly developed by people from Argentina. In the webpage, they say the distribution has between 150 and 200 thousand users.