[tonypaladino]

People here need to stop giving incorrect information. The hand is NOT dead in a tournament. It would also NOT be dead if this was a cash game because the play is Heads Up. There is no way anyone's action can be affected by the button flipping up his cards. In a cash game, an exposed hand MAY be ruled dead, and should be if it is being used as an angle shoot, unless the action is heads up.

In a tournament, as in this case, the hand is NOT dead, but it is NOT allowed and the button may be assessed a time penalty.