Speak To It

 Following Apple's Siri, there have been many Android avatars of speech enabled personal assistants as well. One of them is SpeakToIt. Its very impressive in terms of recognizing speech. The trick is to use common words and avoid names. The app identifies the most appropriate application that can handle the user's request. For example, when I asked it "how much is a pound in dollars?", it queried it on Google Search and displayed the result. When asked, "how do I get to Princes street?" it misrecognized "Princes" as "princess" and opened up Google Maps with parameters from: my location, to:Princes street. It does weather information, helps write text messages, make calls, etc.

http://www.speaktoit.com/