Despite the tremendous numbers of environmentally aware Mac users out there, Apple hasn’t always been the greenest company around. The company has caught a lot of flack for its less-than-stunning recycling programs, and questionable materials choices in the past.

 In 2006, Steve Jobs himself responded with a lengthy and compelling letter, and despite continued anger from the more adamant factions of environmental defense, the company received a Silver Star rating from the EPA for the green-friendliness of its product.

 But now, Apple may be taking things a step further. According to a recent patent office filing, Apple is looking to slide a slim film of photo voltaic cells into their portable machines wherever they can – including under the screen.

No specific word on what devices Apple will add solar power to in the near future, but given the companies status as a major leader in electronic design, any change they implement will have a massive ripple effect throughout the electronics industry.