Right now, the Microsoft To-Do connector only allows for two APIs: add a to do or list all lists. This may be helpful in a single instance or two, but most people want to look at a specific list, iterate through items, or even modify a to do item.
So, it would be great to see more API options similar to Outlook Tasks API:
List all to do objects
List all to do objects in a given list
Get a specific to do item, or do a "first in list"