Phishing requires active participation by the end user, you can't protect against stupidity.<p>Do app store applications have the source code audited?<p>Will Apple take responsibility if something like that were to happen to the iphone?<p>Besides, I already said I'm fine with malware scans, what they could simply do is audit and release a key that approves the app.<p>If you install an app that was not vetted you're on your own.