What are some alternatives?
When comparing jdotxt and Org mode, you can also consider the following products
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
Amazing Marvin - Customizable task manager and day planner
WorkFlowy - WorkFlowy is an organizational tool that makes life easier. It's a surprisingly powerful way to take notes, make lists, collaborate, brainstorm, plan and generally organize your brain.
Nozbe - Nozbe - to-do, task, project and time management productivity gtd getting things done online application with software for Apple iPhone iPad Android Mac Windows Linux