Take a look at Centask https://www.centask.com/ https://www.centask.com/ (developer here), It takes the concepts of inbox one step forward and suggest a complet

Take a look at Centask https://www.centask.com/ https://www.centask.com/ (developer here), It takes the concepts of inbox one step forward and suggest a complete workflow solution, where all tasks and task-related information, including Gmail inbox, are organized and scheduled in one list/hierarchy. Any feedback will be appreciated