Not Rove, Rove's lawyer. If Rove himself said it that would mean (yet) another perjury charge.
Anyway, his cover story only helps him escape from the misuse-of-security-clearance claim. He still is admittedly guilty of passing classified info (Twice, now that he's admitted he confirmed Plame's ID to Novak as well, before he even wrote the column)... Not so "awesome" eh gannon?

You seem to be having trouble processing this, but passing classified information is a felony, too.
Finally, (IF the story is true) the fact that he heard about Plame from Reporter X (Judy Miller maybe?) and did not immediately go to Tenet and tell him, "Hey, your agent's cover is nonexistent" is probably going to get him in trouble with the CIA folks.
And the fact that the White House spent the last two years lying about his involvement with the case means political consequences as well.
Oh, and, there's still the question of WHO exactly gave Reporter X classified info. Judy Miller was already on Rove's speed-dial. She spent much of the runup to Iraq repeating fantastical WMD claims/lies cooked up by the warhawks.
What it looks like to me (again, only IF the story is true) is someone in the Administration cooked up a plan to discredit Wilson (possibly without thinking about the criminal consequences), then rang up a few reporters (e.g. Cooper) and started spreading the story. The story started circulating in the media elite, but few printed it, thinking the claims were improbably. Novak decided he was going to run with it, but called up the Administration beforehand to confirm, which Rove did.
No matter what, the initial source of the leak has got to be somebody within the Administration high up enough to have the appropriate security clearance and a strategic grudge against Wilson. If not Rove (and it might not be, though unlikely) then who else is possible?