No problem, Marcel! Yes, let's save the environment, a few books from each person would make a huge forest.
Oh, and since you have an iPad AND a naughty cat, have you seen this - iPad Game for Cats:
http://www.youtube.com/watch?v=XK2dwTVi-aQ
It's free haha, but I'd be wary of letting a cat scratch the iPad unless it's armored with a solid, heavy-duty screen protector