Now you&#x27;re making a completely different argument. You can&#x27;t ban general purpose computers so now you want to backdoor them all.<p>But people currently buy iPhones because they <i>want</i> iOS. When there is a jailbreak vulnerability in iOS, they install the patch that closes it because they want to keep using iOS. And if they want to run Android or Ubuntu, they don&#x27;t buy an iPhone, and they don&#x27;t have to.<p>If tomorrow the only hardware you can get runs iOS or Windows RT then people who want something else will keep using today&#x27;s hardware, in exactly the same way and for the same reasons as normal people keep using Windows 7 and nobody buys Windows RT. And they&#x27;ll keep doing that until there is a jailbreak vulnerability in the new hardware. Then they won&#x27;t install the patch, they&#x27;ll use the vulnerability to wipe the unwanted OS and replace it with something else (or have someone else do it, but the more common it becomes the easier it gets).<p>The other obvious problem is that today Apple doesn&#x27;t want you to jailbreak iOS. They try really hard to prevent it and still people can do it, and those people don&#x27;t even have a huge incentive because you can still buy hardware that doesn&#x27;t need a jailbreak. You try to impose that requirement by law on all the vendors who don&#x27;t care and are selling to customers who are being forced into it and see how well it stops even everyday people from removing the backdoor or installing free software.