Do you ever really know what you are buying?
I found out about the embedded Computrace application late last year. I checked up on one vendor and found that they didn't hide the fact that this was part of their package, they just didn't broadcast it.
Haven't read the small print, but this should be in the large print on any product that you are purchasing. It falls right into the sort of embedded capability that the Snowden leaks revealed and really begs the question as to who is funding this.
Would be really interesting to see an analysis of what it can potentially do.