Congratulations, Sony Ericsson, for winning what was ultimately a barely challenging competition to become the greenest electronics company around. Our favorite Swedish-Japanese conglomerate rose to the top of Greenpeace's Greener Electronics Guide by exceeding Energy Star requirements, making all its models PVC-free and banning the most harmful chemicals from phones launched since January 2008. Unfortunately, it was valedictorian in a class whose scores have plummeted all around.