Have you seen Scapple? it's an app from Literature and Latte, the awesome company behind Scrivener, which I just love. At first blush, Scapple could be mistaken for mind mapping software, but the developers call it a freeform text editor. I instantly thought of a white board, an analog tool I've personally found easier to use than mind mapping software, which is why I'm excited about Scapple. "Scapple’s nonlinear approach to the process of creative thinking is similar to what Gabriele Rico calls 'clustering' in her popular book, Writing the Natural Way," Literature and Latte said on Scapple's webpage. The app doesn't force you make connections, and there are no rules about where to start. I'm hoping it lets me leave my white board behind, but we'll have to see after I've used it a bit. Scapple is US$14.99 for a "household license," but if that isn't good enough, MacHeist is giving it away as part of their current bundle promotion.