22 tracks available on CD / download (standard release)
1 exclusive (Sea of Simulation) available on Amazon MP3
2 exclusive (Father and Son, Outlands, Pt. II) available on iTunes
1 exclusive (Sunrise Prelude) available on Ovi
27 tracks (22 on disc 1 • 5 bonus on disc 2) available on the special edition CD
The limited, special edition comes with a poster that glows in the dark, along with additional material. I believe it is only being published in the UK/Europe. The Amazon MP3, iTunes and Ovi versions have their own exclusive tracks. Again, there are restrictions (especially with Ovi) on the availability in some regions.
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...and then of course, there's the motion picture out mid-December. …