YouTube video courtesy of tellmezone

I knew about Tellme's voice search feature. But, I didn't know it was able to perform speech-to-text to the extent that it could be used for sending text messages. According to this demo from the Bing community blog, it can...

Use Your Voice to Text, Call and Search with Bing

This feature is probably unique to the Samsung Intrepid as sold by Sprint since I don't see the feature in the latest version of Bing mobile for Windows Mobile 6.

I've found voice commands of limited use of the years although I have been voice dialing a lot more recently.