Security architecture of iOS, as far as I know, is that same as that of WP - close everything. That inherently means that it&#x27;s a lot less capable than it could be.<p>&gt;There simply isn&#x27;t room in the marketplace for more than three platforms.<p>Hah! Just like there &quot;isn&#x27;t room&quot; for more than two parties in American politics, right? You can pull out any arbitrary number to claim something cannot be otherwise just because it happens to be the case right now.