The iPhone Firmware Update from Apple is now available for download via iTunes. The update contains the podcasting, google street view and various security updates.
See the Updates Below"
Enhancements to Maps
– Google Street View
– public transit and walking diretions
– display address of dropped pins
– share location via email
Enhancements to Mail
– resolved isolated issues with scheduled fetching of email
– improved formatting of wide HTML email
Improved stability and performance of Safari
Podcasts are now available for download in iTunes application (over Wi-Fi and cellular)
Decrease in call set-up failures and call drops
Improved sound quality of visual voicemail messages
Pressing the Home button from any Home screen takes you to the first Home screen
Preferences to turn on/off auto-correction in Keyboard settings