This is their top 10 in best phones. The mobile phone with less radiation (0.15 - 0.35 W/kg) is the Samsung Impression SGH-a877. Second position goes to the Motorola RAZR V8 (0.36 W/kg), and third is another Samsung, the SGH-t229.
1. Samsung Impression (SGH-a877) 2. Motorola RAZR V8 3. Samsung SGH-t229 4. Samsung Rugby (SGH-a837) 5. Samsung Propel Pro (SGH-i627) 6. Samsung Gravity (SGH-t459) 7. T-Mobile Sidekick 8. LG Xenon (GR500) 9. Motorola Karma QA1 10. Sanyo Katana II
But wait, where are the big names? Well, as you probably guessed, those are the ones with the bad grades, way down in the list. All the iPhone models have poor scores, with the iPhone 3GS getting 0.52 - 1.19 W/kg. The Palm Pre gets a pretty lousy score too, sitting at 0.92 W/Kg, and so does the T-Mobile G1, at 1.11 W/kg.
So there you go: If you are paranoid, and use your mobile phone a lot without an ear piece, then better be safe than sorry, no matter what the research says now. [All mobile phones Ranking and Smartphones Ranking]