OK from searching the DUC so far early reports are:
EZ Drummer: Some reports of it not running and others of it showing a weird VI.
http://duc.digidesign.com/showthread.php?t=234184
Latest update is that the mixer does not work, when clicking on the faders in the mixer section of EZD numbers appear and no fader action possible. Also unable to allocate separate outputs.MacBookPro 1st Gen 1.83,2gb, 10.5.5, Digi 002R, Firewire drive
Superior Drummer: Slow performance.
http://duc.digidesign.com/showthread.php?t=234184
Stereo Mixer and Surround Mixer: Solution here
http://duc.digidesign.com/showthread.php?t=233996