That is an old one. The one concern for app developers on the FirefoxOS will be protecting their code. If its trivial to reverse an Android app and use that co

That is an old one. The one concern for app developers on the FirefoxOS will be protecting their code. If its trivial to reverse an Android app and use that code it will be even easier to do it on FirefoxOS. So because of that most apps will be webapps and not native apps. The downside is you will need an always on network connection. Validating and enforcing in-app purchases will not be a problem on Firefox OS if its a web app. Of course it can be trivially circumvented in native apps. More reason why I expect only webapps on that OS.