With the everpresent price difference between MtGox and all the other exchanges in USD, is there no one on the planet that can come up with an arbitrage strategy to take advantage of this, (at the time of this writing 200$ per coin) price disparity and buy coins on the low exchanges on sell them on Mt Gox for Dollars until the low exchange price rises up and MtGox price drops, thus acheiving an equilibrium? I know why US citizens can't do it, but citizens in other countries with supplies of USD should be eager to make a quick USD arbitrage haul, right? this price difference needs to be much closer thru some sort of automated trading strategy that someone builds a bot for... If not, MtGox and the other exchanges might trade amongst themselves to make similar arbitrage profits.
Comments?
edit : no one on the planet, not no on on the planet.
Maybe MTGox do their own arbitrage, as they are probably the only people able to withdraw quickly from their own exchange? Buy coins from other exchanges and sell them on MtGox. Rinse and repeat.