This is great news !! Thanks Martin !
Last year there was an informal statement that the data from the CORINE 2006 campaign would be released for all European countries under "free" licenses. I can not find the link anymore but this was mentioned on the french OSM mailing list. However each country is responsible for the release of their data, and it seems to be happening slowly. This is probably something to keep an eye on, though. If you have time to investigate, you may try googling for "corine landcover" and the name of your country (in the local language) and report here whether it is available and under what sort of license !