Here's a quick video demo (Channel 9 has an even longer one if you're interested):

Aspen Movie Map on Michael Naimark's website (includes video demo).

An aspiring Arab singer creates a video demo and sends them to satellite channels that specialize in that area.

Each includes video demos and audio instructions, countdowns and motivational commentary.

But this seems like a solid initial effort, and every video demo I've seen so far has left me fairly impressed.

A video demo of the technology in action was made available on IBM's website.

Some people also write non-game video demos to show off the video display possibilities of the system.

First appearing as a video demo on the promotional PlayStation Jampack vol.

A video demo posted to YouTube shows how the user can move around the scene and control guns by tilting and moving the phone.

The problem with video demos is that they only show what the developer wants you to see.