Shared to do list
It would be great to be able to share a to do item, or an entire to do list with someone else who could also mark the task done.
With workgroups and families this sounds as a wonderfull addition in not a Key_feature
If you are happy with only sharing a task list with other people it is possible with limitations. I am sharing a task list with my family by way of a shared second google account, but it doesn't synchronize automatically. I can synchronize the task list manually. Reminders/alarms cannot be set for the tasks as this is not a feature of google tasks at present.