Originally released as a very limited edition outside the UK as part of Record Store Day, it was inevitable that it would see the light in a non-limited form sooner rather than later.
The CD version came out in July, but I bet that's really boring to look at, unlike this beautiful headache-inducing package. Two uniquely coloured locked-groove discs with etched messages, contained in a sleeve that is all colour and no info.
Each song is a collaborative piece of cyberdelica, performed with the likes of Nick Cave, Ke$ha (yes, yes, I know what you're thinking. It's a great tune), Yoko Ono, Prefuse 73, Tame Impala and Bon Iver. The track with Chris Martin (available on the original RSD release) has been replaced by a new song with Aaron Behrens, presumably for some inexplicable licencing reason. It's a shame, because the Chris Martin song was quite good. Not that many people would admit to liking it, but that's their problem.
Go and buy it, listen to it and then put it on your wall as a piece of art.