TOUCHSCREENS

At first instance I thought that these new way of computer was going to be far time away.... like the ones we saw in avatar for example that they pase information from a glass to another.. but now a days we saw this even in our pockets with the iPhone and iTouch.. but it's not that impressive if we see it in a large format..
I remember a think that happened to my mom and me with an touchscreen computer.. I told her that it was a touchscreen computer and i told her that she can even play with the screensaver (which it was of some fishes in a pond and if you touch them they swim away) so she started to play with it and she was impressed.. then we separated in the store and i heard her calling me so I went where she was and she told me "hey these screensaver doesn't work, the penguins don't move", "Mom it's not a touchscreen computer it's a plasma TV"...
Ok this is an example that we are not that informed about new technologies but we keep trying :)