I've always found it a little bit annoying to switch apps with my Android phone. The stock task manager/app switcher list is cumbersome. SwipePad isn't. You just take your finger, swipe from a corner of your screen and it'll magically launch a very slick app switcher. Pick your app and BAM. Switched.
To-do lists of the past were scribbled in notebooks, on sticky notes, or on whiteboards. Today, they live in our smatphones. Or at least they should.