UPDATE: A second podcast has been posted and more acts have now been "officially" announced, though it seems all of this is common knowledge at this point:
Sonic Youth (performing Daydream Nation), Girl Talk, Powerhouse Sound, Cat Power, Clipse, Grizzly Bear, Professor Murder, Jamie Lidell, Of Montreal, Iron and Wine, The New Pornographers, De La Soul, The Ponys, Battles, Stephen Malkmus
Download: Pitchfork Podcast Preview #2
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Is this for real? Sounds like one of those traffic and tourist info radio stations that they pipe into theme parks:
http://pitchforkmusicfestival.com/splash/PMF_07_backline_01.mp3
Meanwhile, as per usual, the critics and Bloggers can't wait a couple of more days until the official announcement is made and are now rampantly throwing out bands rumored to be on the bill.

Looks like The Twilight Sad will be coming back to Chicago to play at PF fest.
According to their Myspace:
http://www.myspace.com/thetwilightsad
Posted by: Carlo Garcia | 04/11/2007 at 10:36 AM
YAY The Ponys!!!!!!!!!!!!!
Posted by: Kirstie | 04/02/2007 at 10:02 PM
this is very exciting. so some spectulation. friday: team-up with the ATP:dont look back, do we get all three of the acts that are playing namely SONIC YOUTH doing Daydream nation! and house of love...or other bands doing seminal records. time for the rumor mill.
Posted by: cinchel | 03/08/2007 at 08:54 PM