The present invention provides a unique system and method that facilitates
navigating smoothly and gracefully through any type of content viewable
on portable devices. Such navigation can be performed while preserving
perspective and context with respect to a larger amount of content. The
navigation can be key-based such that one or more keys of a keypad can be
employed to browse through, zoom in, and/or zoom out of content. In one
aspect, the content can be segmented into any number of sub-sectors or
segments such that each segment can correspond to a particular number
key, whereby particular portions of content can be viewed in greater or
less detail by pressing or tapping on the corresponding number key.
Furthermore, when viewing a first portion of content, nearby content can
be glanced at by pressing and holding the respective key. When the key is
released, the view returns to the first portion.