It would be really good to see some of the following features in GO:
1. Graphical representation of project progression status
For every project node there should be a small colored "progressbar" , showing overall completion (calculated by all linked tasks
(weighted avarage) completion level).
2. Task assignment for user groups
Its very common when more people working on the same task.
3. Push notifications
When a corresponding user assigns tasks, it would be very handy if he/she receive "Just In Time" messages when an object created or supervised by him/her is being updated or changed.