Apple has released its iPhone Software 2.2.1 Update for its touchscreen devices. They include the iPhone, iPhone 3G, first (1st) generation iPod touch and the iPod touch 2g. According to notes provided with the update, the new version containing “bug fixes and improvements” addresses two issues.
First, Apple says the update provides improved stability for the Safari Web browser.

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: