Henry is not a cheater nor is France a cheating nation in football just because there was another bad call by a referee.
Your talking about Henry as if he is a comic book villain who planned all of this out before. His first touch in this situation wasn't good, the ball sprung to his hand, he raised it, touched it again in the heat of the moment and kept on playing. In an important match like that, which player would've suddenly stopped moving yelling: "Sorry, my bad, I used my hand!"? PLUS: The ref then did not bother to ask him out about what happened, which he should have done.
It should have been disallowed but was not. Happens EVERY week in football.
Get over it. (Cept the Irish folks on here, who have every right to be very angry right now, it will take more time for them to accept it, maybe when they get awarded another ridiculous penalty in the Euro qualifiers ...)