I'd really like the KanBan interface to be added. =)

Also, perhaps displaying the due date and changing colors if it's past due / about to be due might be a good idea. For instance, the day before change yellow and the day after change red?

When things are selected as done, the next day pushing them into an "Archive" list similar to how Things does it might also be cool.

Nice.

Suggestion: lose the windows, lose the pop-up for each task; I found it takes too many clicks.

What I've been thinking about is doing all the editing in place but that ends up a little more difficult to implement.

I see; very impressive for a weekend nevertheless