If The Moon Was Only 1 Pixel is a accurate scale model of our solar system created by Josh Worth. It is an impressive and interactive single scroll page that give you idea of something we can hardly get a grasp on.
The iPhone App, developed by Elepath, allows you to organize all those little things in life you would forget otherwise. "A strange new restaurant. A book with a nice cover. A far-out dancer."
You can already find quite a few To-Do apps in the AppStore which are supposed to support your personal life. However, what makes Thinglist special is its simplicity, user-friendliness and great app design. In my opinion, that justifies the price of $0.99.