Web-based* time and project management application for busy people and teams. Based on the GTD methodology. Everything you would expect in a web based GTD application. Also in Iphone and Android versions.
Windows Mobile app with a very usable interface. Integration with email, you can manage email, projects, tasks, appointments, contexts. Task delegation and email-to-task conversion are supported.
A video demo (less than 3 minutes) can be found in youtube:
http://www.youtube.com/watch?v=qAMbEU0OWgg
It covers all the stages of GTD: http://www.needian.com/time-management.php
Conqu is an easy to use yet powerful task management tool designed to help you conquer your inbox and get things done. With Conqu, you can organize the tasks by criteria that makes sense to you and then find the right task to do at the right time and place. Whether you are a GTD pro or you just need a simple to-do list, Conqu will provide you with all the tools you need.
Evernote: Remember Everything.
Welcome to your notable world. Use Evernote to save your ideas, things you see, and things you like. Then find them all on any computer or device you use. For free.
OmniFocus is designed to quickly capture your thoughts and allow you to store, manage, and process them into actionable to-do items. Perfect for the Getting Things Done® system, but flexible enough for any task management style, OmniFocus helps you work smarter by giving you powerful tools for staying on top of all the things you need to do.
Under the guidance of the excellent task management principles of GTD®, Doit.im conducts you to have your head cleared, to get rid of various pending ideas on your mind, and helps you organize tasks and focus on items in hand, so that you can closely track the process of your work and feel easy when faced with bulks of complicated projects. With no pressure but efficiency, you’ll further enjoy your work and achieve unexpected success.