TeuxDeux

TeuxDeux is a simple and free to-do application that can sync with your iphone or android device that looks and work lot like your paper diary!!!

Once you've created a free account simply start entering your tasks for each day or add it to Someday Section. You can drag or drop the tasks in the list and click a task to mark it as done. The Unfinished tasks from yesterday is automatically added to Today's list!!!
So, if you love to make To-do list you will love it....

Website:  http://teuxdeux.com/