I'd love to see a feature where if I pick the status Waiting that I can then check off zero or more tasks from Toodledo. This could be used to define dependencies on other tasks. Would be extra cool if once the tasks were completed that another task was waiting on, it could be moved to a new state like Active.
i think there have been a lot of talk about task dependencies, it's probably on the radar. but you might find more info if you search for task dependencies, I recall them replying on why it would take some considerable behind the scenes coding to pull it off.