Mustrum_Ridcully
Legend
I thought that refered to 3.5? Though both might be true. Firt a 3.5 after a some time of play experience in the actual field, with feedback from thousands of customers. And then, at some later point, a 4th Edition.I believe it was Monte Cook who admitted after the announcement of 4e that they had actually started planning it just after the release of 3e. I think what he was referring to is that in the back of everyone's minds they started thinking how they could make the game better. I would hope that anyone who designs a game would continue, after its release, trying to adjust it until they were completely satisfied. Even then they probably couldn't give it completely up. In a sense game design is like poetry in that "a poem is never finished, only abandoned." (Can't remember who said that, but it fits.)
4E probably replaced the idea of a 0.5 with a more agressive errata schedule and its Core line of books.