The fact that cellular devices emit radiation is nothing new, and the debate over how much exposure is harmful is far from settled. Tawkon has developed an app for BlackBerry and Android devices to help those concerned about the issue. The company was hoping to bring an iPhone version to the App Store but the software was rejected by Apple.
Tawkon has made the app available on the Cydia app store for jailbroken iPhones and is appealing to customers to help urge Apple to lift the ban. Reports have indicated Apple CEO Steve Jobs himself responded to the company with a short email stating simply, "No interest."
All cellular phones emit different levels of radiation depending on distance from cell towers, local environmental conditions and even the position of the device. The iPhone is no different, however Apple has been keen to reduce perceptions that the iPhone 4 external antenna suffers from the so-called death grip. Some users have experienced a drop in signal strength when holding the iPhone 4 in specific ways. Tawkon has used their RRI (real-time radiation indication) technology to demonstrate an increase in predicted radiation when this signal attenuation occurs.
The problem is not limited to iPhones by any means. When it comes to the app in question, Tawkon seeks to educate interested mobile phone users on the radiation levels they are exposed to from their devices. Using RF parameters and other data such as information from the proximity sensor, RRI measures emission and exposure as the phone is used. The app will track long-term statistics of exposure and recommend changes in behavior such as turning the phone or using a headset when conditions are right to reduce absorption.In normal operating circumstances the iPhone SAR (specific absorption rate) is well within levels considered safe by the US Federal Communications Commission. Unfortunately for those who are interested in more details on their iPhones, jailbreaking is the only way to get Tawkon at the present time.