Yeah that one was me actually. I figured it was a pretty 1337 hack.
Anyhow. If they stole the private keys why would they make such a huge withdrawl? I would import those private keys into another bitcoind and make lots and lots of smaller withdrawls over the course of the next few months.
Sign a message with the private key of the address 114t2bCfrmw44qgZQijNzVU75YphuyZCGk and I'll believe it was you.
As it was an address on my phone I can't easily do that. Instead I'll just send you an 31337 amount of coins.
Money sent to 1PKyq6aMKcCwn8cmb9Jc5SkNydLsQb5n7K.
Crazy. lol Address confirmed

I'll send it back to you once they confirm

Answering your little withdrawal method. That wouldn't work. They(Bitcoinica) would probably notice unauthorized transactions and sweep the entire balance themselves leaving the thieves with almost nothing.
Like this they swept the entire balance and problem solved.