I would really like to see hover cars. Something that is kind to the environment but that moves more quickly than a regular gas-powered car. I am thinking Jetsons, or Star Wars, here. Of course, taking the driving test would require more skills and safety courses, but wouldn't that be a blast! No pun intended.
I look back as recently as my high school years (30 years ago) and can't believe how advanced technology is today. When I was a student, we had no VCRs, no blow dryers, no cell phones, no personal computers, and no social networking. To have all these things today is mind-boggling to me. I can't imagine how advanced society will be in 50 more years.
I expect that social networking will continue to evolve, and handheld technologies will continue to be developed. What would really be nice would be if schools in the United States kept pace with reality instead of doing dumb things like banning cell phones (as though that can ever really be enforced.)
I think these kinds of questions offer a great deal of thought. I am not sure anyone in the 1950s would have conceived of the advances that we take for granted today. Perhaps, one of the most distinctive elements about the future is the idea that we lack the vocabulary to effectively describe it. Part of what makes the future so fascinating is that we seek to articulate through language what awaits us, forever keeping us in a past tense of articulating what we are, which will become what we were.