The new, open-source iTunes killer, Songbird, has launched today, & Boing-Boing's got the details & an interview with one of the software's authors posted. They've also got links to download mirrors, because right now, Songbird's site is completely swamped.

"Code brains behind the project include people who helped build Winamp, Muse, Yahoo's 'Y! Music Engine' media player, and developers from Mozilla Foundation. Initial release is for Windows only, with editions for other OSes to follow in the coming weeks."