Not at all - I can't stand voice UI (at the moment). The problem with voice UI as I see it is that until it's perfect, it's horrible. Even if Siri is 80% great, the 20% of the time I have to repeat myself 3, 4, 5 times to get what I want, I've now spent more time than if I'd just using touch UI in the first place. Eventually that gets better, but until then it's too frustrating / slower than just typing.