Two things crossed my mind right off the cuff: computer hard drives and gasoline powered cars.
In regards to the former, we are all used to our computer "tower" or our laptop containing all of our computer's memory. I even have a backup hard drive to store all of my info in case my hard drive goes. Perhaps you have gotten an inkling with the success of the new iPad? It won't be long before all of our computer memory is stored in huge servers far away from our actual device. We will simply call up our memory over the web.
And yes, as everyone has already mentioned, gasoline powered cars will soon be antiques. I was very close to getting a Nissan Leaf this year, but chose a different model with the green CVT transmission just because I was afraid to buy the prototype. The Leaf will be the norm very soon. Totally renewable energy is the way of the future (which is the reason I get SO angry about all of this research on natural gas that can only help us for 100 years or so).
"Going" to the movies or sporting events is quickly becoming a thing of the past. As our technology makes viewing experiences bigger, better, and clearer, people even now are reluctant to leave the comfort of their homes to go out, spend a great deal of money, and not have the freedom to move about and talk as they wish.
Just recently, Toshiba has released its first 3D television that works without glasses. Right now, the model is only available on a 20 inch screen, but the technology certainly is there to make the screens larger. Home theater sales are sky-rocketing, allowing plush seating and ultimate comfort for your viewing experience. Companies like Netflix and Hulu are bringing instant streaming media to home screens.
As for sports, stadiums worldwide are seeing a steep decline in ticket sales. Why sit in one seat, where even the best spots have limited views (and from only one perspective) when you can watch at home and see ALL points-of-view and do so clearly and close-up?
I agree with pohnpei, the convenience of modern, personal transportation will be nonexistent 200 years from now. Technology will continue to develop vehicles that become more efficient and less dependent on non-renewable resources. These vehicles are cost prohibitive to many families. As such, many families in the future will find they no longer have personal means of transportation. They will then be more dependent on public/government transportation.
I don't know if this is something that people take for granted anymore unless they're my age, but I would say that the landline telephone is something that probably won't be around 200 years from now.
One of the major trends in technology today is that everything is becoming portable. This is the major reason why landline phones won't be around 200 years from now (maybe not even 50 years from now). People want things that can go with them wherever they want, not things that tether them to one place.
I think that gasoline-powered cars will also be a thing of the past in 200 years. We're not even sure if there will still be any oil to be used by then, and technology will surely have advanced to the point where there will be more efficient and less polluting ways to get around.