If they say it works, I guess it does. You should make sure though. I also bought the whole Production Premium package hoping that it would make life easier since I also do a lot of After Effects stuff. But I wont’t touch Premiere Pro until I get a driver for my Kona that does work with it. I did hear that Premiere is still a bit flaky on the Mac, but I just don’t know.
As to making use of the multicore: After Effects does that quite well; even better then the Apple applications, I think; so maybe Premiere does a good job at it as well.
Kool En De Anderen
MAC Pro 8 core/Kona LHe/Apple FCS 2/Adobe PPCS3/Huge fibrechannel
http://www.koolendeanderen.nl