Welcome to the forums
Testing has slowed down because we have been waiting for a
BIOS that allowed us to pass the 488fsb mark with any stability.
But to answer your question, I have no doubt that DDR3 is better than DDR2 providing that money wasn't an issue.
If they were the same price, I would take the DDR3 every time.
Regarding this board though, if they fix the
BIOS, it will be a monster, if they don't, it is still a respectable overclocker, just not quite in the same league as the DDR2 boards yet.