I have been helping a friend beta-test his app, an awesome and simple app called Auer Notes, for the past several weeks. He is also working on a companion app that happens to be one of the most important app types in my toolkit: a todo manager.
He asked me if I wanted to test the very early versions of that app, and since a good notes app and a todo manager are my most used tools, I jumped right away. Like with Auer Notes, the todo manager is a plain text, simple, and private app. It does one thing very good: keeping a list of your todo's. You can add priorities and the app will show them to you in different colors. Done. NOTHING MORE.
The app is in the "crap, this is just a thought" stage right now, but it's already good.
I'm excited to see where this is going.