http://www.gizmag.com/umeox-apollo-s...d-phone/17906/
The company's latest offering announced this week at Mobile World Congress 2011 is due to hit stores later this year. Named after the Greek god of the sun, the Umeox Apollo sports a built-in solar panel on the back for keeping the phone running when you can’t get to an outlet – provided you can get to some sunlight, of course.