Yes, that is a Parallels Desktop 6 USB stick jammed into a MacBook Pro’s ethernet port, as seen on the official Apple Store page. I wouldn’t give Apple (or Parallels, who likely supplied the image) too much guff about it, though: I’ve made the same mistake a couple of times myself.
John Brownlee is Cult of Mac's Deputy Editor. He has also written for Wired, Playboy, Boing Boing, Popular Mechanics, VentureBeat, and Gizmodo. He lives in Boston with his girlfriend and two parakeets. You can follow him here on Twitter.