A 3.2GHz Phenom II X4 955 has been listed. It is a Socket AM3 package with a 125W thermal envelope.
The product is real. Search for the product code and you'll find a number of listings, though this is the cheapest at $280. Pre-launch prices of CPUs tend to be higher than final street price, so I estimate it should end up around the price of the Q9550, $270.
Preliminary testing ( http://hardware-infos.com/tests.php?test=64 ) shows that, paired with DDR2-1066 memory, it is on average 5% faster than the previous high-end, the X4 940. This is in line with the theoretical max of 7% boost in clock speed and 11% boost in northbridge speed. That would make it competitive with Intel's Q9550. and Figures should be 1-2% higher than that with the full DDR3-1333 memory that this supports.
