Here is a neat and easy thing (I suppose), quite useful for people in my situation:

A preference setting that allows us to always see our inbox items right on the Today screen as they arrive, rather than have to click into the Inbox to check many times per day.

I know you will ask why. It is because I never have heaps of tasks or thoughts in the Inbox. I normally enter new tasks straight into the project etc where they will belong. The Inbox is something I use only for external emails, such as calendar notifications, Siri notes and the occasional forwarded email. I normally want to see and decide on these as soon as they arrive, as quickly and conveniently as possible.

As for the implementation, I suppose there are several alternatives. The best would probably be to display the Inbox items as a separate "group" etc on the Today list. Regardless of which grouping I have chosen there could be an additional group called Inbox. Another alternative would be automatically spread them out among the other tasks in Today (in the no Context group, no Project group etc, depending on which grouping I have chosen). As I would easily see that these tasks have no project, no context and no priority defined I would know that they are new arrivals.