"CR suggests that Tesla may have gone a bit too far with features such as the touch screen and the retracting door handles."
They did call the door handles "fussy," which seem like a fair assessment. Firmware updates and the tech package will likely improve this.
However, I did not hear any negative comments about the touchscreen. They did say that surfing the internet while driving may be going to far however. The touchscreen interface is superb, in my opinion. It could have been quite different, just look at the horrible reviews of BMW iDrive, MyFordTouch, Mercedes, Lexus, Karma, etc. I have read plenty of Model S reviews, and everyone praises the touchscreen. The people who did the user interface did an exceptional job, and should be very proud.
GSP