I saw another David Blaine trick where he took a woman's watch
out of a shop window along a street..and after watching your video,
I can see how David Blaine did it..I can't see the glass moving,
but I can see the newspaper that he used to cover the glass moving
about when the glass is being "moved" back into original
position..David Blaine even looked at the newpaper to, probably,
check whether is it moving too much to give him away.. 
so that proves that your video is true.. 
