Mobile App: Hands-free advice
Instead of spending your time sifting through online search results to find the hot new play to see or the perfect romantic restaurant, you can hand off the work to Siri, a voice-activated virtual personal assistant that will perform online tasks for you. Just speak (or type) into your iPhone at the prompt, and Siri does the rest-even going so far as to buy theater tickets or make dinner reservations.
Runs On: iPhone/iPod Touch.
Runner-up: BlackBerry and Windows Mobile users can try Tellme (free), which offers similar functionality.