According to this report at Digitimes, the first triple-core processors from AMD in their Phenom 8000-series are going to be released this coming March.  First up will be 2.1 GHz and 2.3 GHz models known as 8400 and 8600 respectively.

AMD will launch two B2 stepping triple-core CPUs, Phenom 8600 and 8400 in March of next year, while in the second quarter, the company will launch three more models, Phenom 8700, 8650 and 8450.

The Phenom 8400 and 8600 will feature core frequencies of 2.1GHz and 2.3GHz, respectively, while the Phenom 8700 will clock at 2.4GHz. Phenom 8650 and 8450 will be based on B3 stepping cores, and will have frequencies of 2.3GHz and 2.1GHz, respectively. All five CPUs will have a 95W TDP.

The high price/performance ratio of the triple-core CPUs could force Intel to cut prices of its quad-core products which could cause higher-end models to cut into sales of lower-end CPUs, noted the sources. However, AMD could also face the same problem, they added.