Apple Going Solar?

Imagine having the ability to power your iPhone and iPod using the sun. Apple has apparently filed a patent for a technology that will stack solar cells beneath a touch sensitive screen. This will definitely solve the problem of needing room for the solar cells on the device after allowing for buttons and a screen. It will also allow iPhone and iPod users to charge up their devices without the external charger and could increase battery life. Solar powered calculators and watches have been available for years. Why not a solar powered iPhone and iPod?