1. As a DRM-free mp3 download, beginning October 10 (and available for preorder now), via www.inrainbows.com . This version contains the 10 tracks that comprise In Rainbows, and you can pay whatever the hell you want for it. This is basically the band leaking the album and asking you for a donation to access it.
2. As part of a deluxe "discbox", available for preorder now and shipping in December. In addition to the 10-track In Rainbows on CD, you also get the release on LP and as a digital download, plus an enhanced bonus CD packed with eight more tracks, photos, and artwork (and an LP of the bonus tracks), plus art and lyrics booklets and some nifty looking packaging. This thing costs £40.00/$81.00.
3. As a traditional CD, available in early 2008. This will presumably cost as much as traditional CDs tend to cost.
What Radiohead is doing here is actually pretty cool. Rather than preface their new album's release with the usual three months of press ballyhoo, only to have it leak at some random time before it comes out, they've kept it completely under wraps, then essentially gone and leaked it themselves. What's more, they've turned this into a moral question of sorts, by giving us the freedom to pay actual money for what amounts to an album leak.
New Radiohead October 10th? (soon).