Ultimately, Apple has no real task management ANYWHERE! I have a Macbook and the task "app" in iCal is a joke. There's not really any type of task manager on the Mac. I use Contactizer Pro which works well...except for the fact that it doesn't play well with ToDo on my iPhone. So right now I use ToDo and Toodledo for my syncing. I don't really like having a separate app for tasks and then a calendar, but that's where I am right now. I am close to buying Pocket Informant, but Google hasn't opened up the API for their tasks yet. Also, the makers of Contactizer Pro have promised an iPhone app coming out to compliment the desktop version...this is REALLY enticing!