On the other hand, I think it's worth noting that if promoting literacy and delivering encyclopedia content to the illiterate (worthy goals to be sure, but primary goals for other projects, or for the future after Jimbo's stated primary goal is already met) actually hinders the goal Jimbo has elucidated here, it's something that should probably be on the back burner. The Wikipedia project can't be everything to everyone: we should ensure that it's successful at being something for someone, though, and that requires a certain narrowing of focus.
Delivering (encyclopedia) content to the illiterate should never be Wikimedia's main goal. But there is money to be found to do this kind of stuff. And why not get some of it and use it to set something up to further these worthy goals :)
The originally intended focus of it strikes me as a good choice.
Maybe the goal should be "one of people's mother tongues" instead of any language they can read. This would exclude Zeelandic and other European regional languages but would definitely include many African languages.