Quote Originally Posted by AlexB View Post
I think DGT GTD will help you, together with Toodledo(pro)
It can work with Tasks, Projects, sub tasks, and just simple Checklists types, so you can keep going.

Since the product is still Alpha it is under construction, but you can really use it already, it'has more functions than other apps that are finished. And more importantly you can help the developer create a tool to your liking.
Just checked. Enourmous functionality but no auto next action. You have to fiddle with setting status. Pretty cumbersome in that regard.