Quote:
Originally Posted by
patrickBOOTH 
I think the biggest shortcoming of Siri is having to physically press buttons to engage in a question. If my hands are already on my phone I am just so much more likely to do whatever I need by myself. I think it would be cool if you can just address her and she knows your voice and it wakes your phone. A lot more useful, imo.
Lots of people have wanted this since Siri went live. The problem is battery drain, it'll need to keep the mic powered at all times in order for this feature to work. I don't think Siri is useful enough yet to make that sacrifice in battery life.