multiple displays

Displays color values for any color for use when doing graphics

Displays both "Mini", "C7" type, and novelty shaped light bulbs

Displays different weather on your screen

Displays the current level of natural light.

Displays/solves trigonometry, orbital ballistics, conic math problems.

Displays circular plasmid maps with four kinds of features.

Displays webcam pics in picture-in-picture mode.

Displays size of selected files/folders in Finder in menubar.

Displays icons of sub-folders as albums.

Displays RSS/Atom feeds in the menubar and sends updates to Growl.