Back in April I wrote about the availability of fring on the iPhone, but at that time you needed a jailbroken iPhone to use it and the iPhone 3G wasn't yet available. You may recall that fring is a VoIP application that lets you use Skype, MSN, Google Talk, ICQ, Twitter, Yahoo!, and AIM clients to chat and instant message. Well, the good news is that fring is available now for free in the Apple App Store and can be loaded on your iPhone without any jailbreaking required.
fring will run on your iPhone or iPod Touch and works over the WiFi network. You can even make SkypeOut calls with fring so if you are traveling fring may be the application you want to make low cost and free calls on the road.
I have been using fring on S60 and Windows Mobile devices for a while now and think it is a great application to load on your device. Plus, it is free so you might as well give it a try, right?