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 means it can skip puddles with the best of 'em. It'll come in recycled packaging with an energy efficient charger. What we don't know, unfortunately, is what makes this phone tick, neither OS nor hardware specs. Not a word on price yet, but UK environmentalists can look forward to this one second half of this year.