The story is about securely wiping the device so that it doesn't leave even deleted data behind. iPhone doesn't support that.
Also remember that the iPhone jailbreaks are actually remote exploits run on a website. iPhones are basically completely rooted just by visiting a website. Great security there, tho Apple users are posting is a "good" thing as it allows them to root their phone.
Yes. Apple makes computers for people who don't understand anything about computers. Microsoft makes computers for professionals.
Phone manufacturers and telcos are making the wiping much harder than it needs to be. I guess they do that because they don't make any money from you selling your phone second hand. This is especially true for iPhones and Android. Are Blackberry and Windows Phone 7 really the only phones that have complete wipe feature built-in? I dont even mean the usual delete, but actual multiple times overwriting. While it's more important for business users (and why RIM and Microsoft pay more attention to such details), it's something casual people need too. It needs to be on other phones than business ones too. But like it is, you usually get what you pay for - if you pay for professional software companies like Microsoft, you get products that have been though over and made secure. If you get something amateurish, well, that's what you get. The kind of things business users need are the first things forgotten in those devices and software products.