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.

201ab23ab3... Block 163272 (2012-01-21 23:21:10) 2.5395 Received: Address 2.5395
44c2a91f94... Block 163340 (2012-01-22 11:02:53) 2.5395 Sent: Address 0