I certainly wouldn't want to dictate a "long email or text message", but I do find the speech to text useful with the built in navigation, web search, and yeah,

I certainly wouldn't want to dictate a "long email or text message", but I do find the speech to text useful with the built in navigation, web search, and yeah, occasionally short text message replies. For example, from the Android "car dock" app, you can click voice search and say "navigate to Barnes and Nobles", etc.