Windows phone 7 voice command features demoed have uploaded this video of the new voice command features in Windows Phone 7, which uses a combination of on-device speech recognition and also their Tellme service.

While the feature is not perfect the likelihood is that it will support much more functionality out of the gate than Windows Mobile Voice Command did, which I am sure will come as much relief to users concerned about the technology going unsupported and un-updated on Windows Mobile for so long.