Hehe. Tilt-shift is an effect that blurs out the top and the bottom of the picture, focusing only in the middle. So if you take picture of some people/buildings whatever while being far away from them, they'll look like miniatures/toys. I just made up my mind about getting the Nikon D3100 with the lens that comes with it. Looks like a good beginners kit since the D3100 is a really good choice for amateurs.
Might save up for some other lens later.
http://www.youtube.com/watch?v=e_k2NlHODA4 Tilt-shift effect.
Another video where you really can see the miniature illusion http://www.youtube.com/watch?v=ywAJL8sKYvk