The dock doesn't do anything fancy like output HDMI or have extra features like charge a spare battery, but it will sit there on your desk and keep the phone at a nice viewing angle while it's charging.
Whether it's worth $39.99, as HTCPedia has it priced, is another matter to consider, but until we see other docks for the unreleased phone (particularly one from HTC), I guess this one sets the bar.
[HTCPedia] Thanks, SBridge!