Unless they say that it does include the skewers and tape, it's safest to assume it doesn't. If you're determined to separate fact from fiction, here are some sites that show parts on scales, or have weighed them:
http://www.velovert.com/matos
http://www.fotos.light-bikes.de/main.php?g2_itemId=199
http://www.veloptimal.com/index.php?menu=photos_poids