Android will crash each time it will open graal once it's backed up, I'm sure because android use the same system as windows and it will over heat and crash... So probably need a way to fix it even tho it's not fixed for the people who use windows 7 
My 4S gets slim without cover  |
LOL no, no it doesn't.
Believe it or not, it uses the "Android" OS.
Which is developed by mainly Google (along with others) for mobile platforms.
Imagine an iOS except it's comes jail-broken and you can make/host applications for free with no limitations.