Even if you’re fed up with ToDo apps, even if iOS5 will have its own Reminder app, even if you still use pen and paper, iTask is definitely worth a look. The iPhone app from TopLineSoft Systems provides its users with a more complex look at your classic ToDo lists. Its most notable characteristic is the diagramming interface it uses to create tasks and link them together in complex (or simple) dependencies.
You use them all the time, but perhaps you don’t call them that. Every project you work on is comprised of a number of tasks that follow a certain flow, a certain sequence, if you will. When writing a review for an iPhone app, for example, I first need to download the app (Task A), then test it and play with it (Task B), then I can work on any of the following, in any order I want (cutting my screenshots, getting the icon for the app, writing the review) and [...]