With Android being an open platform, I would expect the marketplace to be open as well.<p>What google needs to be doing is making the marketplace billing implementation competitive to companies building their own billing service.<p>As a developer, we're already making decisions on what platforms to build on. If you select iOS and Android (likely), you are now forced to then implement a separate billing solution for each bundle.<p>I guess there is a big opportunity for somebody like appcellerator to build a api to the billing systems. But billing systems are often complicated enough.<p>I'm beginning to think the best solution is find another way to monetize.<p>Why are these sorts of terms legitimate for the marketplaces? They wouldn't be permitted to restrict advertising to come only from iAds or AdSense, would they?