More nesting levels of subtasks
I see in BC2 only one nesting level of subtasks but in native tasks much more nesting levels.
James Carlyle-Clarke commented
I think that this matches the Google Calendar setup - that can only do one level of Indents. Agreed that it would be great to have more but then it would not Sync with Google Calendar.
There are many task list systems that can do this. Personally I use Wrike but there are others.
Nathan Bodwin commented
Tasks Free and GTasks offer multiple levels of subtasks but Business Calendar doesn't. There's a lot of great functionality in Business Calendar but the tasks functionality is rather lacking.