What are some alternatives?
When comparing jdotxt and Todo.txt, you can also consider the following products
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Amazing Marvin - Customizable task manager and day planner
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
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
Taskwarrior - Taskwarrior is an ambitious project bringing sophisticated capabilities to a simple and elegant...
Effitask - Effitask is a graphical task manager, based on the todo.txt format.