Users of the free application, which Apple is expected to make available as soon as Friday through its iTunes store, can place the phone to their ear and ask virtually any question, like “Where’s the nearest Starbucks?” or “How tall is Mount Everest?” The sound is converted to a digital file and sent to Google’s servers, which try to determine the words spoken and pass them along to the Google search engine.
The new voice-activated Google Mobile app for the iPhone is finally here. Whatever the reason for the delay, it was worth the wait. As we wrote last week, the search app knows when you bring the phone to your face to speak into it. It beeps, you talk, and it executes a Google search on what you said. (If you're using a headset, you have to press a button. You can type in your queries, too, if you want.)
It is freakishly accurate. It's not perfect, but it's extremely good. Good enough to be used frequently, I'd say, although this review is based on only 15 minutes of experimentation.