Sony Japan is giving out codes to download God of War III from the PSN Store as part of the promotion for Infamous.
The God of War III demo will be available on November 19 in Japan, and these codes can be redeemed between November 19 and February 2010. No word whether the demo will be available to those without these codes.
The game is expected to be out next March in North America.
God of War III Demo Dated [Siliconera]