The main-net puzzle has been solved https://blockchain.info/tx/f00f5da308a948aa019de92428c7fa1c89587414f56beee7074135d46dad793d

And there is a new puzzle

http://blockexplorer.com/testnet/tx/44b9f9ff28fbfc33d4824729b2ec6f2929588faef81717e194fd7fe2a6b5d384