Now that you mention it, it is kind of strange that Renaissance is capitalized in the title of the HN submission, when it isn't in the article. Oh well.

When I think of an artistic renaissance (lower-case), I think of emerging from a fallow period into a new, productive, innovative period. The article makes the case that this is what happened in Argentina as a result of these netbooks. I can't say if that's true or not, but the word choice is reasonable to me.