Looks like they changed it up. The soundtrack CD is now included with Special Edition while Limited Edition gets DLC codes for some in-game bonuses, but no soundtrack.
Unboxing of Special Edition:
http://www.youtube.com/watch?v=LWoKKBL4ucI
Xbox360 Limited Edition front cover = no soundtrack
http://img.ozgameshop.com/pc_and_vid...dition_raw.jpg
PS3 Special Edition front cover = yes soundtrack
http://ecx.images-amazon.com/images/...L._SL1500_.jpg
And btw as it says on small sticker the Special Edition is only available from Gamestop (both PS3 & Xbox360) so makes sense to mark this CD as Retailer Bonus. At least Gamestop is meant to be an original distributor for it.