The details are a little hazy at the mo - I am trying to find out more but from what I can see IPS (ItalianPokerSuite.it) started the idea and are waiting for 10 nations in total (we have 4 so far - England, Italian, Romanian and French). But then the admin mentioned to me the other day that there was a freeroll on (told me too late though).
I'll try to get some more info.... I think they use CD Poker for their games...