As you've probably heard by now, Apple released the much awaited 2.2 firmware update for both the iPhone and iPod touch. This new firmware brings several impressive new features.
Downloading and Installing the new Firmware
First, you'll need to get the new version of iTunes that was released last night. Next, launch iTunes, and connect your iPhone or iPod touch. Click on your device and select the "Summary" tab and then click "Update." The update will then take a few minutes to download and install.
If you've ever used the maps application before, then you know how useful it can be. Apple has added cool new features with this update, including Google's Street View service. Street View provides a full 360º view of some streets in the US (this isn't available for every street). To try it out, enter an address in the search field. When it's found, click the head icon in the bubble that appears above the pinpoint. The Maps application has a very cool transition from the 2D map to street view.