Nothing to see here. Just the mybitcoin and polish bitcoins being released into the market place.
Probably. We just don't know. The Dow Jones index fell over 2% yesterday and erased all 2011 gains. Many people are wary of a new recession in the USA. All these bearish factors must weigh on bitcoin's value, especially for people who have bitcoins but need to pay bills and loans in real world currencies.
If stolen Mybitcoin and Bitomat bitcoins are being sold off en masse right now, buyers are doing the thief a favour by buying up his or her stash.