iTunes just informed me that the 1.1.1 firmware is out for the iPhone. Here are the changes from the release notes:
• iTunes Wi-Fi Music Store • Louder speakerphone and receiver volume • Home Button double-click shortcut to phone favorites or music controls • Space bar double-tap shortcut to intelligently insert period and space • Mail attachments are viewable in portrait and landscape • Stocks and cities in Stocks and Weather can be re-ordered • Apple Bluetooth Headset battery status in the Status Bar • Support for TV Out • Preference to turn off EDGE/GPRS when roaming internationally • New Passcode lock time intervals • Adjustable alert volume.
I'm installing it right now, and will see how it plays with my third-party apps.