Truphone turns iTouch into an iPhone, sorta
Developer’s description: Sad that your iTouch can’t make a phone call? Truphone created a landmark application that converts the simple, wildly popular iPod touch device into a mobile phone — something that the media player was not designed to do. With the Truphone-created app, users find themselves with a powerful phone replete with calling options, instant messaging capabilities, and most attractively, low-cast calling.
For now, you can use the app with any headphone that has a mic. Soon, you can buy Trupphone’s own Microphone Adapter compatible with the 2nd generation iPod Touch. With this final addition, Truphone will offer iPod owners a comprehensive mobile phone package complete with high-quality hardware and low-cost software. With its newest 3.0 iteration, Truphone for the iPod Touch has come to include much more communications features and capabilities.
Pros: iTouch users have been crippled by not being able to place a call. Low costs, especially international calls.
Cons: Uses WiFi to place the call.