Just found the article you are talking about (and also found many blog comments from people that state that you have to own a business or entity in cameroon):
"It's an odd scene to picture: a domainer's reps in a sit-down with Ephraim Inoni, the prime minister of Cameroon, to discuss the power of type-in typo traffic and pay-per-click ads. And yet, as with most of the angles Ham has played, the Cameroon scheme is ingeniously straightforward.
Ham's people installed a line of software, called a "wildcard," that reroutes traffic addressed to any .cm domain name that isn't registered. In the case of Cameroon, a country of 18 million with just 167,000 computers connected to the Internet, that means hundreds of millions of names. Type in "paper.cm" and servers owned by Camtel, the state-owned company that runs Cameroon's domain registry, redirect the query to Ham's Agoga.com servers in Vancouver.
The servers fill the page with ads for paper and office-supply merchants. (Officials at Yahoo confirm that the company serves ads for Ham's .cm play.) It all happens in a flash, and since Ham doesn't own or register the names, he's not technically typo-squatting, according to several lawyers who handle Internet issues."
Note: Google.cm brings you to Netflix