As a longtime Windows Mobile user I was early to try out Microsofts Voice Command solution and while it certainly has it's uses and place, it has never been something I used often. The quality of the product was impressive back then, so long as you spoke loud and clear.

I often used it in the car, it was easier to "phone home" to say I was on my way or that I was stuck in traffic. That's assuming I was not driving my little open top sports car where the wind and road noise would cause interesting alternative results.

But I never did get used to shouting instructions to my phone while walking down the street or sitting on the train - I just felt too self concious. Perhaps if I was wearing my Star Trek jersey I would feel less stupid...

While voice is good and has it's place, it is secondary to a decent touch interface.