Just downloaded the Trial, after the typical wait of d/l and install it launched fine. I had to turn the graphics all the way down because of low fps at 1024x768, but once I did that it was very smooth. The only major problem I found is the point-and-click with the mouse is...flakey. On some things it works just fine (selecting chat box, clicking "do you want to exit now?" button, dragging options sliders), other things such as activating or dragging powers from the power tray, selecting inspirations, or trying to switch between server and global friends lists, were non-functional. I suppose this is related to the standard DirectInput mouse problems, but this is such a huge step forward from 6.0 I'm not griping too loudly.
In terms of score, I'd give it a Bronze at least, but it probably really deserves a Silver because of the universality of the mouse problems
Oh yeah, 2.0ghz Core Duo MBP/1GB RAM/128MB ATI X1600/OS 10.5.2