Task management or to-do lists are a very personal thing. Everyone seems to have their own concept of keeping track of their "to-do" list. Usually there is one common thread: a list. How you shuffle it, organize it, or tag it, is the personal part of it. I was excited to see the to-do option in mail.app with the release of Leopard, but that just never seemed to get off the ground. Additionally I needed a list that moved with me on my iPhone. I've been struggling ever since I gave up my Treo for my iPhone last year. That is, until now.