Solar powered concept phones have been around for a while now, Nokia did some interesting work in this area a few years back and again more recently there is a strong selection of solar powered chargers for iPhones and other mobiles.
But might solar powered phones be about to hit the mainstream? That's the rumours following new reports that Apple is working on solar powered elements to its batteries to reduce the strain caused by brighter screens and faster processors,
A recent job listing confirmed that the company has a requirement for a solar power expert within the company's Mobile Devices group.
The company filed this patent for a solar panel earlier in the year.