The marketing material pushes the black version, but I suspect the white to black ratio will be higher than Apple had initially expected because of this issue.
Server/article is down. Its a rather interesting problem and it generated lots of questions. One immediate question is how you determine the the nodes that sit on the rail voltages (i.e. the good and bad nodes)? Would be interesting to see if how they measured the success of this solution in reducing click fraud etc.
Counter intuitive principles and highly thought provoking ideas make it a great, although long, read. The application of the conclusions in this article would be interesting to behold and analyze.
Author, rightly or wrongly, holds some strong opinions against Clay Shirky's ideas.