I was thinking of posting about this as well, but noticed you already posted. Looks like another attack on the site again. This in combination with the volatility of Bitcoin of late signals an obvious attack on the currency, there's a landrush for Bitcoins, everyone is trying to make a dollar.
It's kinda funny to watch the markets. Once it opened the price shot up to like 120 again, and then went right back down to 75 when the site went down.
yeah the instinct to panic sell is pretty amazing. at this point it seems pretty obvious that's the entire purpose of the DDOS, but it doesn't stop it from working. XD