Anxiety is a super-lightweight To-do list application for Mac OS X Leopard that synchronizes with iCal and Mail.

Anxiety aim is to provide a streamlined, easily accessible interface to add and check off your tasks, while remaining poised to melt into the background at a moments notice.

Here are some key features of "Anxiety":

Synchronized:
· Anxiety utilizes Leopard's Calendar Store — a new system-wide database that contains your calendars, events and to-dos — to remain in sync with iCal and Mail. Add, remove, or check off a task in either Anxiety or one of these apps, and the changes will be reflected in the others.

Compact:
· Anxiety's sleek interface provides just what you need to jot your tasks down, without burdening you with cumbersome large windows. With a tiny desktop footprint and clean minimalist aesthetics, the application is simultaneously small, beautiful and effective.

Integrated:
· Anxiety is perfectly integrated with Apple's other applications that posses to-do functionality: Double-clicking a list item reveals the task in iCal or Mail for extended editing, and simple shortcuts allow you to see your full list externally.

Omnipresent:
· Outfitted with a menubar item that toggles the visibility of the list window and capable of either floating above other windows or subtly fading out when you switch applications, Anxiety is there when you need it and invisible when you don't.

Customizable:
· We all work in different ways — let Anxiety's appearance and functionality mirror your own style! From toggling the application dock item and menubar item, to enabling list sorting and setting the list window to dissappear when inactive, the choices available allow Anxiety to be tailored to any workflow.

Free:
· The final selling point? Well, it turns out you actually don't have to pay a cent to get the most out of Anxiety - it's completely free! All features are available from the get-go. However, if you really enjoy using it and want to support its development, donations are appreciated.

Requirements:

· Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor
· 512MB of memory