I love my retina Mini, which I've had for a month, but I have noticed that if I press hard at all in the center portion of the screen (which I don't do often, but it's happened on occasion), it will go crazy, causing color smearing and darkening around the point of pressure...much like you see if you accidentally push on your monitor screen or an LCD TV. I'm sure that's exactly what's happening, and the glass is flexing to contact the LCD, but I didn't have this on my 1st gen mini...is the glass that much thinner, or is the 1st gen bonded to the LCD or something else?