SonyErricson's Green Heart(c901)

Green in title specifies the eco-friendly heart of sony-erricson.The mobile is made of 80% recylable plastic and come in environmental friendly smaller packing,with lower consumption charger and even have an online user manual to save paper.
Cybershot C901 features all the features in the original model announced at the World Mobile Congress.
Features

• 5MP camera with a Xenon flash,
  
• 3G,
  
• but this model also sports the green credentials listed above, which is hoped to help lower the overall CO2 footprint of the range by 15%.

This mobile seems to be the favourite of the cool people for its ecofriendliness.