I love having To-dos on release phases as a sort of checklist (and, well, task list). But, usually only say one of the 5 or more to-dos can actually be done at any given time. I'd like to be able to set a start date for to-dos so that they don't appear in my to do list until a specific date (e.g. when the release phase starts). That way I'm not spending time reading a list of 5 to-dos when I can only do one of them.