twitter status

Official Twitter client for Mac (was Tweetie).

Facial expressions show computer usage

Screensaver that notifies you of changes to your applications

Check delivery status of packages.

Visually reports the presence of a specified network drive location.

Twitter client for publishers, marketers, and power users.

Twitter client with a real OS X look and feel.

Native Twitter client.

A full-featured free Twitter app for your Mac

A minimal (and elegant) Twitter client