Sounds like someone found a way to re-package ambient music to me. That is, "real" ambient, as opposed to the watered down techno silliness that often passes for ambient.

Warning- If you turn up your system to listen to the samples, on page 2 of the article you get a pop-up ad with LOUD audio.
Thanks Wired, that's the sort of thing we've come to expect from you guys.

"Silence... music's original alternative. Roots grunge!"

-- Todd Snider, "Talkin' Seattle Grunge Rock Blues"

I'm betting the mp3's compress really well.