Free legal music at Qtrax

Qtrax is launching a legal ad-funded peer-to-per (P2P) music service. Their software doesn't seem to be available at the moment though. As of Jan 28, 2008 6:45PM (I'm here in a +8 GMT zone), Qtrax' website says that their Windows client will be available on midnight, EST. Their Mac OS X client will be available on March 18, 2008. Hmmm... this looks interesting