No, they cannot _easily_ be done. For all, you need to jailbreak the device. Definitely not trivial unless you have old HW, puts yourselfs at odds with Apple, is a cat and mouse race -- and if you are so involved with technology you know you have to avoid those like the plague. No to mention that the morality aspect of financing a company that does exactly what you DON´T want is at best questionable.
And you even need additional hardware for all the options he mentioned (except for the BT file transfer, where you only need to replace the entire BT stack. Go figure. And the same people will complain rebuilding a Linux kernel is hard...).

If you want to go down this route, then everything can be done with either device as they are both Turing machines. So, what can the iPhone that the N9/00 doesn´t? Be cute?