Analsyis on why Zynga’s profit machine was at risk; and why its leverage helped Zynga has found that the leading social network isn't so friendly. But the recently-struck, five-year partnership with Facebook will certainly be a big determinant on how well they play together in the future.In a recent analysis, Steve Carpenter, who recently sold his company, Cake Financial, to E-Trade, outlined why he believed Zynga's profit machine was at risk. But because the social gaming giant had significant leverage over Facebook, a deal was sealed, essentially saving the future of both companies, but mostly Zynga's. He estimates that Zynga is making some $15 million in profit a month, which could be wiped out if Zynga had to pay Facebook's stiff 30% tax. In the interview, Steve highlights what he thinks is Zynga's risk. ... [ read more]