How dominate will voice become?
Granted the technology behind voice recognition is impressive. But I have to wonder just how much voice will come to dominate the way we interact with computers. I hate having to work in cubicles where I can easily overhear somebody on the phone. Imagine that a constant 8 hours a day from all directions. While you might be able to wear headphones to block out the noise, it makes using your own voice commands iffy at best. And I'm not sure my voice can withstand 8 hours of constant use, 5 days a week.
Voice is great for the occasional scheduling, messaging, or search query. But I can't imagine creating a complex document with it, or writing code with it.