Hello everyone,
Last night, I installed the mt gox app on my phone, synched it, did a small transfer out in BTC and went to bed. Overnight, all the fiat in my mtgox account (in trades or wallet) was converted to btc at the market price, and everything was withdrawn to an address that isn't mine.
I've sent an email to mtgox technical support to let them know. Waiting on a response
Is your phone rooted? I've seen reports where malicious apps accessed other bitcoin related apps and transferring the funds from it. (blockchain.info app for example just now)