Password Chest is a simple password management application. It reads and writes the Password Safe V3 format (see http://passwordsafe.sourceforge.net/) and is meant to provide a native Mac OS X user experience.
BtBatStat is a simple OS X app that shows the battery status of your Apple bluetooth mouse and keyboard in the menu bar. It supports the Apple BT keyboard, Apple Mighty Mouse, Apple Magic Mouse, and the Apple Magic Trackpad.
MailWrap is a plugin for Apple Mail to help users compose plain text messages that are correctly line wrapped at <80 columns. It introduces line wrapping and paragraph filling operations, and extends the built-in block indentation functions to work in plain text mode.