Not yet...they usually come out in the spring (if they are going to offer it)...first to Disney Visa holders then the general public...act fast though...they go quickly!
Since 2005, Disney has been offering Free Dining during the last part of August until the end of September, give or take a few days. It has already been offered to UK visitors for this September and to those of us who were there at WDW during Free Dining this past September for the dates of August 30 - September 27 2008.
The free dining for this year should be announced during the first week of April. The first couple of days it will only be open to Disney Visa holders and then will open up to the general public. We aren't going back this year because the heat was so terrible and we thought we would have low crowds, and the crowds were not that low to us.