Very nice app :-) Neat, clean, well organized, simple to use, and seems to have lots of nice extras like collaboration and calendar sync.. I like a lot about it - congratulations :-)

One nice thing in particular, that I have not seen in other apps, is the lightning icon for "do now" as a subset of today. Should be very useful :-)

What I miss, or have not found yet, are:

1) Manual reordering of tasks: This is something I depend on a lot.

2) GTD Next: I find it useful to see all my "possible to do now" tasks, i.e. all GTD Next task, on one screen.

3) Priorities: The way I would like to use priorities, they would be relative to the particular list the task is on. For example, if I have a Someday task of High priority, I would take this to mean that it is quite likely that I will decide to turn it into a Next action. When at some stage I actually make it a Next action, it should not keep its High priority, but should be changed to Normal priority by default, Similarly, if you have a High Priority Next action that you star. When seen from the Today list, this task should now be shown as a Normal priority by default, and you should be able to change the priority separately on the Today list. If you subsequently unstar the task, it should revert to the original priority it had on the Next list before it was starred.

Is any of this already there? Is any of it planned?