If you're going to question the video posted, you need to be fair, and evaluate the solid support it has, too. For instance, many say it's a flash application, right? How do you explain the cursor's constant speed when moving, and the direct corners it takes? It's clearly receiving digital input, likely from the Wii-Remote. It's likely that a flash application's cursor would be controlled at least by a mouse, or some form of analog input, unlike what we see in the video.
Of course, there's the fact that the earlier leaked picture was taken from a CRT, this leak is from a different kind of TV, so it's likely a different person. However, both their rosters match up perfectly. That's strangely coincidental if one of them is fake.
Anyways, there's more, but I forgot it.