Vocalia is described as 'is the only 100% hands free speech recognition application which enables speech access to your address book, iTunes library and Safari bookmarks' and is an app in the Office & Productivity category. There are 2 alternatives to Vocalia for iPhone. The best alternative is iVoiceDialIt.
Finally: voice recognition for the iPhone! Dial numbers without looking at the screen. It's faster than the touchscreen and safer in your car. Record voice samples for any contact in the addressbook. Just speak to dial the number. Open any application with your voice.