The proofs for the album artwork arrived (in the form of links to monster JPEG and PDF files) early this evening, shortly before I left work. Apparently it takes several hours for it to work its way through the upload queue to their proof server.
Their prepress artist found about a dozen nits to pick, but they were all things artbeco and I had discussed, and many of which we did on purpose. One comment strongly implied that said prepress artist wasn't old enough to have seen a punched card in the wild; the rest were almost certainly boilerplate.
So I told 'em to go anead and, as we say at the copier company where I work my day job, push the big green button. Fasten your seatbelts!