When planning multiple posts, the calendar view always defaults to the current month with no wrap-around (ie. you might be able to see the first few days of the next month but you can't interact with them). This makes a big difference if you want to drag a post forward in time into the next month, which is impossible at present.

If you could scroll down through the calendar, that would help enormously for scheduling future posts rather than having to click through the months for every post. Either that, or have the calendar view remember where you were working rather than always returning to the current month (or both? That would be awesome)