For example, if you were watching a baseball game. Normally, you would see it as if it was on a T.V. screen. The window is a analogy that you are watching the game as if you were watching through from a window, but its still a screen. The 3D effect makes you perceive something "behind" the screen
Thats not true, since its a small screen. Lenticular screens can still cause a pop out effect due to retinal disparity. All this means though, is that there is a so called "sweet-spot" where a person must view the screen. If it was slightly off, the effect would be gone.
This is the problem about creating 3D without glasses. It limits the range of view, but it is not a problem because of the small screen, And there is really no other way a person would look at the screen outside of looking straight at it from a reasonable distance away from the screen.
Another way to think of the window-effect: You look outside and see a bird, it flies towards the window and it grows, away and it shrinks, it can hide behind things, or cross in front. But no way in heck is it coming THROUGH the window.
And re: the hologram comment - see you know that it would be silly to think hologram, and I know that it would be silly to think hologram, but this IS the internet, you never know what people might misinterpret...
You think you die and everything'll be sugar and rainbows!? -Sazh to Vanille, FF XIII