Note: While the last "balance" is the accurate number of bitcoins available to this address, it is likely not the balance available to this person. Every time a transaction is sent, some bitcoins are usually sent back to yourself at a new address (not included in the Bitcoin UI), which makes the balance of a single address misleading. See the wiki for more info on transactions.

f8139eef96... Block 137239 (2011-07-20 20:57:55) 47.1257912 Received: Address 47.1257912
004a83e69a... Block 137242 (2011-07-20 21:27:17) 47.1257912 Sent: Address 0