The iPad tablet with the carbon fiber case?

Anyone who has an iPad probably knows how "heavy" it is and would certainly not be upset if Apple found a way to make it a little lighter. Well, today the US Patent Office has published an application (accepted) for a patent sent by Apple in 2009. Through this patent, called "Reinforced Device Housing", Apple has registered an innovation that demonstrates how it can be used the material CFRP (carbon fiber-reinforced polymer) to build a very light case for an iDevice. The drawings in this patent correspond to the size of the iPad tablet, so some he believes that the iPad 2 could have the rear aluminum case replaced with such a carbon fiber case to further reduce the weight of the tablet.

If we look at the history of the iPhone terminal, then we can say that Apple could change the design of the iPad 2 tablet including the back cover because the iPhone 3G had a hard plastic case because the aluminum case of the iPhone 2G blocks the GSM signal / Wi-Fi. I know that this "presumption" is "thin", but it should be taken into account.

So, which iPad owner would like a lighter tablet?