Added Icons 

I added some icons to the main screen (sorry I'm terrible with graphics, but it's better than the buttons). The buttons also have text below them so the user still knows what they are, just in case some don't make sense.

I tested this both on my Evo 3D phone and Nexus 7 tablet. It looks fine on my phone, but a little small on the tablet, but I guess that is to be expected.