BTW., if someone with skill would manipulate the RNG intentionally, he would do it this way:

https://bitcointalk.org/index.php?topic=883793.0
https://www2.informatik.hu-berlin.de/~verbuech/klepto-ecdsa/
http://www.reddit.com/r/Bitcoin/comments/2p2kcd/how_perfect_offline_wallets_can_still_leak/