It is not a new rumor that AMD is working on a graphics card, possibly codenamed "Vesuvius." It is expected to feature two of AMD's Hawaii GPUs and might also be known as a Radeon R9 290X-X2, or such. The official naming hasn't been confirmed anywhere yet. Now, AMD has pulled off a rather interesting stunt, in which it not-so-subtly hints at a dual-GPU graphics card. It doesn't take a genius to figure out which that will be.
A brilliant move from AMD, assuming it was the sender, of course. Given that the origin of the package was Toronto-based, that's quite likely, though nowhere did it clearly state that it was from AMD. Or maybe Chris just has a creepy secret admirer.