Its actually playing for me - not at full speed but watchable. I'm with iPhone user-agent but I'll check with the default too.

I stand corrected - when using iPhone user-agent, the little video to the right is not shown but instead the link takes me to the dailymotion site where the video plays in full resolution and slow.

Now with the iPhone user-agent again - i have a "watch video here" link which opens the same preview under the found link and it plays it small.

And back to the standard user-agent. Works again, the video on right runs, but it takes a little longer to load I think...

Also if you choose original size from the dailymotion menu, it becomes even better.