Drudge Report is reporting at the top of the page that a source says the name of McCain's VP pick:

MAY LEAK AT 6 PM ET... WITH SOME SORT OF CONFIRMATION AT 8 PM... DEVELOPING...

Isn't this exactly what we suggested here at Blogs for John McCain last night:

I would not be surprised though, if word just happened to leak out to some intrepid reporter late tomorrow afternoon - just about the time Obama begins his speech at the Parthenon in Invesco Field.

Perfect timing!