Google has released the web-based version of its Google Talk optimized for the iPhone/iPod Touch. The application works from Safari and looks pretty much the same as the GTalk desktop client.
Feature wise, Google made sure you can easily select people you want to chat (add them to “quicklist”), search contacts and manage multiple conversations. However, because it’s a web-based app, there are downsides too. For instance, when you navigate away to another browser window or application, your status will be change to “unavailable” and the GTalk session will be restarted when you return.
It’s nice and everything but a surprise to see Google optimizing a whole array of its apps for the iPhone. However, I would suggest using some of the existing native chat applications (in case you have a jailbroken iPhone/iPod Touch), or web-based meebo.com which allows you to chat with your buddies who use other IM clients, too.
To use GTalk on your iPhone/iPod Touch, simple point Safari to www.google.com/talk and take it from there.