I got a iPad2 last week. When I run YouTube application on my iPad using 3G connection, the video works fine. When I run the same application using wifi connection, I got the message: this move could not be played. All other internet applications work well on iPad using wifi.
This problem occurs on my iPhone 3GS too.
When I access the same video on YouTube with my PC on the same wifi, it works fine.
Anybody else has facing this problem?