Mom. My old tablet is a crap. :-P
image credits: amazon and Baby sees the iPad Magic, Copyright Steve Paine, Flickr
Parallax scrolling is a special scrolling technique in computer graphics, first popularized in the 1982 arcade game Moon Patrol. In this pseudo-3D technique, background images move by the “camera” slower than foreground images, creating an illusion of depth in a 2D video game and adding to the immersion. The technique grew out of the multiplane camera technique used in traditional animation since the 1940s.
from wikipedia
This will be a hot web design trend for 2011. Wanna see some examples? Click here and here. :)