I think this has been asked several times but still isn't in the new Forum, so I'm here to ask it.

When using projects, it should appear only one task by project in 'Next', that's essential for GTD. If all the tasks of a project appear there, you lose the focus and have to do workarounds.

So, I hope you can implement this key feature.

Some interesting ideas about this have been discussed here: http://support.doit.im/entries/311191-Multi-Level-Nested-Tasks