I wrote a review of simple to-do list apps over at The Sweet Setup. In the course of working on review, I became fascinated with how different apps approach the most basic functions of a to-do list: creating items and then checking them off the list. So I made a short video comparison of the design decisions these different apps have made (with a nod to My Dinner with Andre).
Apps included in the comparison: Things, Paperless, Omnifocus, Zippy, Taasky, Task, Any.Do, Reminders, Listacular, Begin, and Clear.