I have horrible memory, and i constantly have to create To-Do lists. Ive played with several apps for andriod, such as "post-it" style widgets. None of which even come close to Astrid. Most "post-it" widget have horrible UIs and barely show any text on the post-it widget. Astrid shows 3 tasks, only takes up a 2x2 and give you an ability to bind the events to times/dates/alarms. you cant beat that.