Sync user created Live calendars to WP
Allow new calendars added in Live to sync to WP and add an option for to select which calendar new To-Do items will appear on (when new To-Dos are added via WP).
Example: I created a separate "To-Do" calendar in Live, but Windows Phone can't "see" this calendar, rendering the calendar useless on my phone. I would like to be able to see this new calendar on my phone and assign new To-Do items I create on my phone to the "To-Do" calendar. This would be useful in that it would allow WP users to categories their To-Do items and view them on separate calendars (both on their phones and in Live), rather than having everything (appointments, to-dos, and so on) crammed into a single "personal" calendar.