I went to the MS store to return my launch day SP3 because of a yellow tint on the left side of the screen. +10 for service at the Beachwood Store in OH. All they did was ask if I purchased it at their store. I told them I bought it online directly from MS. Good-enough for them. A quick check and about 1 minute later I had a new SP3. I also had an uneven trackpad, so they replaced my keyboard too even letting me pick out a new color. But when I got home 3 things really stuck out: 1) Pen has much more friction. I always was worried if I relaxed my hand I would drop the pen. NOT ANY MORE. It has significantly more friction, and looks a tad darker in comparison to the earlier pen. 2) The glass on the touch screen is DIFFERENT. There was a visible pattern of the conductive material on my original model. I've been able to see this on all touch computers I've had (e.g. Ep121, Samsung Tab7, Sufrace RT, Surface Pro 2) and they each are unique. The one on my first SP3 looked like a square fractal pattern, but was only visible at an angle with a light source in the background and a dark screen.The new model has absolutely no trace of the touch layer. It is the first touch computer that I can not identify the clear conductive material used for touch. But what is most surprising is that MS is continuing to modify the SP3. Cudos. 3) My Start button doesn't vibrate anymore. I like everything else about the computer, and even like that it doesn't have haptic feedback to be honest. I am going to let it go and assume it was just a new design choice. But anyone else with a new production run SP3 not have haptic feedback?