LessWrong is getting ready to release an actual book that covers most of the material found in the Sequences.
We've been asked if we'd like to produce the audiobook version and the answer is yes. This is a large undertaking. The finished product will probably be over 35 hours of audio.
To help mitigate our risk we've decided to Kickstarter the audiobook. This basically allows us to pre-sell it so we're not stuck with a large production cost and no revenue.
The kickstarter campaign is here: https://www.kickstarter.com/projects/1267969302/lesswrong-the-sequences-audiobook
If you haven't heard of us before we've already produced some sequences into audiobooks. You can see them and listen to samples which are indicative of the audio quality here.