I would very much like to have the ability to add a handwritten note to any task. This would greatly improve RTM on the iPad, as typing on the iPad is slower than writing (for instance with a stylus). Thus during meetings it will be much easier to jot down some notes/actions on any (project)list.
Users shoud be able to zoom in and out when writing, like the Notes Plus app. And the writing would preferable be as fluid and neat like Penultimate which is much better in simulating the look and feel of writing in real ink on paper.