Here's the description..
"we are pleased to offer a free EP featuring songs from the talented group of artists who will be supporting us on the lights in the sky tour this summer.
the EP contains five high quality, DRM-free, fully-tagged MP3 files from a place to bury strangers, does it offend you, yeah?, crystal castles, deerhunter, and nine inch nails. "
source (also the download link)
No new NIN but alas, it comes with some cool digital extras as usual. Who is going to see them this summer? When/where? :)