 It is the second IAMX album to contain tracks intended for the aborted Sneaker Pimps album "SP4".2008 US editions differ significantly from the original 2006 version.Many of the songs were significantly re-recorded or remixed, most noticeably "The Negative Sex" and "Spit It Out", as well as "The Alternative", "Nightlife" and "Song of Imaginary Beings".