Summary after reading all the comments:

To actually see the message click the link "Show scripts & coinbase"

This is a non-standard transaction. This type of transaction burns bitcoins(bitcoins don't go anywhere.)

This transaction was first mined by the pool called Eligius. The Eligius pool allows non standard transactions if the transation is relayed to it directly.

The message is also not signed(PGP) correctly by Satoshi(Bitcoin creator).