Task Coach
▻http://taskcoach.org/index.html
The desktop version of Task Coach (Windows, Mac, Linux, BSD) has the following features:
Creating, editing, and deleting tasks and subtasks.
Tasks have a subject, description, priority, start date, due date, a completion date and an optional reminder. Tasks can recur on a daily, weekly or monthly basis.
Tasks can be viewed as a list or as a tree.
Tasks can be sorted by all task attributes, e.g. subject, budget, budget left, due date, etc.
Several filters to e.g. hide completed tasks or view only tasks that are due today.
Tasks can be created by dragging an e-mail message from a mail user agent (Outlook, Thunderbird, Claws Mail, Apple Mail) onto a task viewer.
Attachments can be added to tasks, notes, and categories by dragging and dropping files, e-mail messages, or URL’s onto a task, note or category.
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Tasks and notes can be synchronized via a Funambol server
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