I am planning on buying an iPad Mini with Retina Display. I heard about color gamut problems, that kinda made me nit want to buy it a little. But I have a few questions. 1. How many typing mistakes have you done when typing in it. Is it cramped to type? 2. Are apps also being optimized for the iPad Mini? 3. How long does its battery last? 4. How many times does it crash? In what apps?