Thanks Ayako!
A new 3+ minute clip from Man of Tai Chi has been posted at Yinyuetal. It is a great clip and offers a lot more than the trailer. Contrary to reports of others, from the text that is accompanying the clip, the music is not the theme song from the movie. It is not clear if the poster chose the music for the footage or if it was chosen by the studio. Regardless, the text says that Tiger is singing.
You can view the clip here.