Exactly Scoutaz!
I was watching CNBC early this evening and they repeatedly referenced the mysterious "fat finger" as the possible cause for this largest single day drop ever in the DOW. The "B" and "M" keys are only separated by one key you know!
Without a plausible and simple "mistake" whatever integrity remains of the equity markets would be lost for good. It's a mugs game for the average investor who are up against intensely complex and super fast algorithmic trading platforms.