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.

15489206ed... Block 180137 (2012-05-14 17:05:16) 3 Received: Address 3
9f3ab91bca... Block 180140 (2012-05-14 17:54:31) 3 Sent: Address 0