First, as mentioned in the article, the Museum of Modern Art in NYC will be featuring Dwarf Fortress as part of its "Talk to Me" exhibit. The exhibit will be open from July 24th through November 7th. http://www.moma.org/visit/calendar/exhibitions/1080
Second, for those looking to get into the game, the two recommended video tutorials are SippyCup's (humorous) http://www.youtube.com/51ppycup, and Captain Duck's (down to business) http://www.youtube.com/user/captnduck#p/a/u/1/yn1iW1QN7_s.
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Tarn has The Fisherman Parable philosophy and I have a tremendous amount of respect for that. Doing what you love, no matter the "sacrifice", above everything else. He's probably the biggest reason why I've been working on the side to try to create my own games, so I can get the heck out of finance and do what I wanted to since I was 6 years old. Until that works out for me, I send a monthly donation to ensure that at least someone can fulfill their dream.