A bunch of information about AMD's tri-core processor plans was published at VR Zone. The site claims AMD will launch these chips as the AMD Phenom 7 series in the first quarter of 2008.
The launch date of the 65nm Toliman tri-core processors is likely March 2008. Only two models are expected: the 2.3GHz 7700 and 2.3GHz 7600. These processors use the Socket AM2+, have 3x 512KB L2, 2MB L3 and a power consumption of 89W.
A 45nm tri-core processor codenamed Heka is expected in the first half of 2009 but few details are know about this CPU.