Samsung website is not very forthright in providing that information.
But, I found something that seems to tell the whole story:
NV24HD : Samsung Premium Digital Camera
Then click the "Part Names" tab.
I would say that you need the cradle and a standard HDMI cable.
This is the same way that Kodak HD digital cameras work too.
Now, Sony HD digital cameras do have a special HDMI cable that plugs directly into the camera. Available only from Sony for $40.