I have yet to see a single Brisbane to report correct temperatures.
I also got an email from a company who was in contact with AMD. AMD responded that the DTS wasn't ready yet. We have all seen that in most cases it works well (pre-Rev G1 chips). But Brisbane doesn't look too good.
I've also put together a new system, and while PC ProbeII reports 22C idle, I get 17C and 8C in Core Temp. And even a bigger difference when running dual Prime95.