Having the ability to make a Checklist Item mandatory to mark a task as completed would be a great way to ensure that people are looking at the complete task before just checking it off.

It would be great to allow our clients to filter their read-only view by a keyword or category if they want to look at one "slice" of their project

Each of the tasks that are entered have some type of desired outcome from the completion of the tasks. Typically that outcome is a way of measuring that the task has actually be completed. It would be useful to have a field that defines the deliverable that is expected from the task.

For each task have planned vs actual starts/complete dates for variance reporting of where we are vs where we thought we'd be in a project timeline.

When all Checklist Items are marked as Complete, the Task is then marked as complete.

Force Task Ownership by List. Basically creating lists by Owner so I, as a manager, can delegate tasks quickly. I can use this with templates to auto-assign projects to the appropriate cross-functional departments.

Assign many users to a Task.

Wouldn't it be cool to see your Tasks in Google Calendar or Outlook etc?

When a Task is overdue an email alert should be sent to the Owner of the Task to remind them it needs to be done. This should probably be configurable per user.

I love the Chatter integration and seeing the number of Chatter Posts. It would be even better if there was some alert to show that there had been posts on the Task since I last read the Chatter feed.

When you open the edit window for a task the Detail field is tiny.

To report on stuck tasks would be great to have a counter for how long its been suck in the List

When viewing multiple Boards in the Plan View it would be great to collapse to just the List or Board level to see a high level Gantt without all the Tasks.

There are currently no email alerts in Taskfeed. This is by design. The goal was to reduce email. Some people do still like to receive notification when Tasks are assigned. For Salesforce Enterprise and Unlimited customers this is possible using workflow. For Professional Edition users this is not possible. Consider building these notifications into Taskfeed and make them optional for users.

Currently the plan view is in Days. For larger projects viewing this in weeks and months would be great.

I use the same two or three Boards all the time. It would be great if I could just favourite these to always show at the top of the Board Switcher.

In the Board Switcher used to navigate between Boards currently the 25 most recently edited Boards which I have access to are shown. This isnt very useful. I want to only see my most recent Boards.