Option to "Display completed" in the "Next" view
When trying GTDNext for a couple of days this lacking feature was what finally made me go back to my old system (Nirvana) and just keep this under watch. There are two reasons to have this feature:
1. I'd like to see what I have accomplished during the day. (Each morning I clear out/collect all completed items from the day before).
2. Sometimes I think that I may have clicked twice by mistake and thereby accidentally marked both the wanted item and the next (scrolling up) item as completed. As I don't remember the list completely and don't have a list of what I have completed I can't see clearly if I made this mistake.
The new “Today” vew we introduced in March allows you to see your completed tasks. Take a look!