Android: To-do manager Due Today is a GTD-themed organiser that makes it easy to add items, projects and categories, simple to update and manage your to-dos, and multiple views to help you view your tasks in the way that makes the most sense to you.
Due Today supports Android phones and Honeycomb tablets, syncs with ToodleDo, and works with the Due Today Windows client to help you manage your projects and to-dos when you're not using your Android device.
The app also allows you to add tasks, subtasks as dependencies, and recurring tasks on a schedule that you set. You can also set task start dates as well as finish dates, so you don't see items on your list until its time to start working on them.
There are plenty of Android to-do managers, but Due Today is one of the most robust we've ever seen. It's available now in the Android App Market for $2.85 and is ideal for fans of the GTD productivity technique.