I figured that one thread tracking changes in the poster might be beneficial.
I just took a look at the poster that was posted by Goldenvoice's Myspace page earlier today and noticed a slight difference from the one posted on Coachella's main page. Animal Collective is now listed as a Saturday performer.
Anyone have any idea which is the most up-to-date version?
EDIT: Check out this page for updates on any lineup movements. Thank you to M Sparks for taking care of this.