"I have seen that, here is an update from someone on the Coachella board who tends to be fairly accurate year after year. http://monklish.blogspot.com/"
suprefan: "Thanks for linking to my blog, good job there."
Of the 105 bands on the final list, 29 weren't on the official lineup. That's 72% accuracy.
The bands that weren't accurate guesses:
Dale Earnhardt Jr. Jr.
How to Dress Well
Matt & Kim (thank goodness)
The Glitch Mob
Totally Enormous Extinct Dinosaurs