My only other comment would be, the nice thing about a list - is I can see all of the things I've put on it, its an organized way of knowing I've spelled everything out. What if I forgot a task I wanted to do with this format (that I thought I had entered)? There'd be no way to know.
The biggest problem for me, would be motivating myself to use the app consistently, even though I do certainly like it.
I've only really shown it to friends and family so far, so I appreciate the feedback. Seeing all the todos you've entered so far does seem to be a common request. Of course everything with this app represents a line in the sand - once crossed, it becomes a regular (horribly underfeatured) todo app.
I've thought about making the list available, but in an intentionally inconvient format, such as comma separated and horizontally laid out, and on another page, so you will only consult it to remember what you've entered. It's all about keeping the constraints to steer you to interact with the app in a way that's actually productive.
Re: motivation, I agree. Hard to make any "productivity" tools sticky, unless they really do improve your life. I have a couple ideas though.