Infinite crisis as been really good so far. Almost every DC comic has had tie-ins with it, and it has been a long time leading up to it. With all the tie-ins and events leading up to the crisis, and the crisis itself have taken over one year (in real time), so the OYL event is justified.
Do you think that OYL will just be a long storyline (being retconnedretconned at the end of it), or do you think it's changes will be permanant?