Many things don't work well together: oil and water, drinking and driving, and as it turns out, Samsung's TecTiles and the Galaxy S4. Samsung is acknowledging that the current line of NFC tags cannot be read by its new flagship phone. In fact, even the official TecTile site's Buy Now link is now defunct.
The holidays aren't over yet, and Samsung is playing Santa today if you have a US Galaxy S III or Note II. Just register the device with Samsung and you will get a free flip case worth $40 and 6 NFC TecTiles worth another $15. Not bad for doing almost no work.
All you have to do is install the Samsung Mobile Facebook app on your PC (yes, you have to use Facebook).