Not bad, but what about those mining ops who have hundreds of cards? What if THEY turn to cracking? 
Hail the emperor above!!!

SirBruce, I have done business with BitcoinExchange and although it's not always real-time, it's NOT a rip-off either. Patience is a virtue, and your Lordship should know that!

PayPal has the ability to build users graphs. If you trade with someone who was involved in a trade involving bitcoins (up to three degrees of separation I think), you become part of the graph. A few trades like these and they freeze your account...

Oh, and expect some spam emails in the future! Maybe nigerian letters involving bitcoins?

Usernames and emails were released, indeed. Passwords were NOT, only the hashes.
Weak passwords can be obtained from the hashes. Strong ones - not really, it's kind of hard 

My two BTcents: login to your account as soon as you can and change your password to something resembling a bitcoin address.
That should be hard enough to get from it's hash 

The markets need to be free, but exchanges need to be secure!

I meant limited human resources  (one guy...) maybe part of the $300k (or whatever the amount is) can be used for better security?

Well, this is sort of good news   It proves that despite the limited resources, MagicalTux stays on top of things.
I wonder what happens to the $1000 the rightful account owner lost. Will he be reimbursed by MtGox?

Maybe Satoshi just unloaded his wallet just to see what happens?

Look at what just happened on MtGox, and you will understand why people are a bit cautious spending their life savings on bitcoins...

Well, at least we know   he's working on it.
A couple more incidents like this, and both MtGox and Bitcoin will go down in flames  

I wonder how much negative media coverage this incident will get tomorrow...

Maybe MagicalTux took it down to analyze the situation and prevent future issues (technical/psychological etc.)

Right now, MtGox seems to be down... Was it hacked, is there a rush on account checking or is this a DDos related to the ton of bitcoin that were unloaded earlier?

Why don't you all check your MtGox accounts and report back?

I believe MtGox should offer an explanation, even if it's something as simple as "we were not hacked, someone is just playing the market like a fiddle" :-)

Difficulty would go up tremendously, and he will get tons of bitcoins. If he decides to sell them all at once, the price would crash and he will lose lots of money. BTW, I think a million dollars has already been spent on mining equipment. What a boon for AMD!

Mining is easy to do, but expensive. Profitable trading is difficult and time-consuming. There is no universal answer, it depends on personal circumstances.

cool video. deserves a coin! 

Mining may not be very profitable now, but what about the future? If bitcoin hits $30 again, mining will be very attractive again. Anyway, more businesses accepting bitcoins is fundamental, I would love to see it happening at a faster pace...

Interesting. How can this be made safe and large-scale?