Anxiety is a new and well-crafted “no frills” task mananger for Leopard that manages a list of your to-dos and syncs them with iCal and Mail.app.
Personally, I like the big, fully-featured approach to task management (OmniFocus, iGTD
, etc), but not everyone needs all the bells and whistles.
If these big hitters are not for you, then Anxiety is well worth a look. As the developer says, “With a tiny desktop footprint and clean minimalist aesthetics, the application is simultaneously small, beautiful and effective”.
It presents a simple list of outstanding tasks, which can be displayed and hidden again by clicking on the app’s Menubar or Dock icon:

When it has focus, hitting Return brings up a pane to create a new task. Tabbing through you can quickly enter the task and assign it to the calendar of your choice. Once it is created in iCal, it is soon synced into Leopard Mail as well.
Double-clicking on a task in the list opens the to-do in Mail or opens the task’s Edit pane in iCal (you can set this in the app’s Preferences).
Checking the box on the left, completes the task, which turns a violent green and then disappears.
Anxiety’s Preferences allow you to determine whether it displays tasks by individual calendar or in a unified list, whether the icon is displayed in the Dock, Menubar or both, and various display options:

Anxiety is freeware (donations not refused) and is available – along with a comprehensive list of its many virtues – from the developer’s web site
.
[Via digg
]

thanks for posting this! This is exactly what I’ve been looking for.
Beautiful!
It’s very easy to have Anxiety to sync to iGTD or OmniFocus via iCal as described here: http://www.43folders.com/forum/2007/12/13/using-anxiety-hud-omnifocus and here: http://igtd.phpbb24.com/viewtopic.php?t=2057