I was actually thinking about this a few days ago, can't see it myself because a) security reasons b) people who can't drive (grant it may be computer driven, it doesn't mean that computers get it right) c) the price of fuel is definitely puts a no-no on flying cars because the amount of energy needed to get in the air is much more than normal (obviously) and finally d) environment and wildlife. I think birds would be extinct in a matter of years if that was the case
Actually Robotic Medical Equipment that can perform the most delicate of surgery is going to blow away Technology but of course it won't be anything any of us will have at home.. That being said, the demand of such surgery due to the elderly and more demand by new possibilities is making this possible.
I think I would personally want a Transporter Pad myself over flying Cars..