Apple early Friday morning released iPhone 2.2 Software Update, which delivers a number of improvements and adds Google Street View, public transit and walking directions, and more. A similar update is available for iPod touch users without the new Maps enhancements.

The update includes all of the features that were rumored in recent weeks all over the internet, including Emoji icons for Japanese users. Apple has published a page on its website dedicated to the release, and specifically highlights the following enhancements:

What’s in this update:

• Enhancements to Maps
  • Google Street View*
  • Public transit and walking directions
  • Display address of dropped pins
  • Share location via email
• Decrease in call setup failures and dropped calls
• Enhancements to Mail
  • Resolved isolated issues with scheduled fetching of email
  • Improved formatting of wide HTML email
• Podcasts are now available for download in iTunes application (over Wi-Fi and cellular network)
• Improved stability and performance of Safari
• Improved sound quality of Visual Voicemail messages
• Pressing Home button from any Home screen displays the first Home screen
• Preference to turn on/off auto-correction in Keyboard Settings

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