Samsung's Blue Earth handset might just be taking the green thing to a whole new extreme. Made from PCM, a recycled plastic from water bottles, the phone boast an "eco" mode for efficiently adjusting screen brightness, backlight duration and Bluetooth usage, and an "eco walk" app / built-in pedometer to tell you how much CO2 emission you've saved by walking instead of driving. The best part? It's got a giant solar panel on the back that'll apparently charge it enough to make a phone call anytime the sun's peaking out. Of the form factor, Sammy says it "symbolizes a flat and well rounded shiny pebble" -- which we hope m