The guys at Windows Phone Hacker have posted the above video, demonstrating how to dictate and send an SMS. It works flawlessly, and is really encouraging.
At the end of the video, he states “In the meantime, while we wait for Mango, please refrain from texting and driving.”
Finally, we’ll have a quick and easy way to text while on the road. It is still not 100% safe, as you have to find your start menu button on the phone, but still tons better than the current “look ma, no hands on the wheel!” method.
Source: Windows Phone Hacker