"Down for Maintenance
We have detected a security breach. Services are temporarily suspended until we have thoroughly investigated the situation. We will resume services as soon as possible.
Please do not send funds to your address for the time being.
Stay tuned for further updates, thank you for your understanding."
Same on Instawallet and Paytunia, and now this:
http://blockchain.info/address/1LrPYjto3hsLzWJNstghuwdrQXB96KbrCyPlease not now..
Well, I had sent some BTC to Bitcoin-Central and it had not appeared in my account there after a while so I raised a support ticket.
A little while later when I tried to check my account again I got this "Maintenance" message.
Checking back up the blockchain from the link you provided, sure enough I found my transaction destination address.
Let's just hope these big transactions are just BitCoin-Central making safe their wallets.