On: 500k Bitcoins traded in 1h, Mt.Gox market hacked +...

[Tichy]

Ah, true, taking advantage of market glitches. I should add some positions for that, too :-)

[joezydeco → Tichy]

The real question is if mtgox can actually reverse trades like they claim they're going to do as a result of this situation.

In a regulated exchange it's certainly possible. Is it possible with bitcoin? Once the block is away...it's away.