New article up now. Says that Fitzgerald served Rove's lawyers with the indictment papers yesterday:
http://www.truthout.org/docs_2006/051306W.shtml
It might be true, but it's important to note that Leopold is not exactly reliable. He actually has a shady past rivaling that of Jayson Blair. He was busted by Salon for writing a fake story regarding Enron/Sec.White and then trying to cover it up. He also has admitted to other journalistic crimes and problems with drugs/mental illness. It also looks like he has a relatively new book out, so he could be trying to do a stunt like this to raise publicity. There's a pretty good chance Rove will be indicted eventually, so he probably figured he would take his chance now.