::::::Comments like the ones above are why I have just about given up on contributing to wp. In actual fact, the depth of this article was perfect (up to Ubuntu 12.04 LTS! -(( ), and was just what I needed to read. Then along come the nitpickers who know stuff all about the topic ready to get it to conform to the rest of wp. Wanting secondary scholarly sources re open source software?!!! (Hint: secondary scholarly sources re open source software ARE RARER THAN HEN'S TEETH, nitwit. Figure out the economics. Which should not equate with notability.) Meanwhile, the contributors who could have continued this article to cover 13.04 & 14.04 have dropped out (arrgghh!!!) and the nitpickers have run away. Wikipedia - dying the death of a thousand pruning nitpickers.