I have been watching this every so often for the last year or so, but then it got used in a presentation at JALT2010, then another at the Kansai ETJ Expo, so I guess it’s gone all mainstream (although, with 33 million views on Youtube, it was probably about as mainstream as you can get).
I think this may be one of the best videos on Youtube. It’s original, quirky, inspiring, has great production values and good music, is extremely feelgood, and gets me all emotional. It would also be really easy to use it in class.
The story behind it is also pretty cool (for bonus points, check out the two videos where he reveals the hoax and then denies it, or track down the Japanese Visa ad starring Matt).