Google Talk Now Available for iPhone/iPod Touch
Google has released a version of Google Talk optimized for the iPhone/iPod Touch. The new web application will only run in the currently active window, however, and you will not be able to receive messages if you navigate to another window or close the Safari application.
With the release of iPhone/iPod Touch 2.0 software this coming week, I wonder why Google has chosen to spend the time and effort to create a web application instead of a downloadeable native Google Talk application for the iPhone.
There will most certainly be other third-party applications that will allow you to instant message through all your IM accounts (some already available if your iPhone is jailbroken).