Don't remove the Call Queue!
I have been notified that the Call Queue is being replaced completely with the Task Queue sometime this month (May). Although the addition of the Task Queue is very helpful, it should not replace the Call Queue completely. Calls and Tasks are put at different prioritie levels.
I make calls to the same person everyday, so having to set tasks each day for each contact would be innefficient. I tried to enroll them in sequences to auto-task to prepare for the change but ran into the problem of unenrolling once they responded to an email. Tasks are for followups and things that need to be set for the future. Tasks are always last priority of the day and if they are mixed with the most important things it would get confusing and be a waste of time to try and seperate contacts into different Task Queues everyday.