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.

4dd5cb8f5c... Block 168461 (2012-02-25 19:48:12) 9.4147326 Received: Address 9.4147326
43cef4d941... Block 168476 (2012-02-25 21:55:47) 9.4147326 Sent: Address 0