However, quality control can be a problem with special issues. It's crucial to have a guest editor willing and able to make tough decisions. Presumably the guest editor should already be in contact with key people in the area who will be submitting.
Development communication is a good example of a neglected area.
The call for papers suggests some exciting possibilities. The only question is whether there are people out there who will come through with manuscripts that realize those possibilities. The trick will be to define a special issue focus that clearly moves the discussion forward. I wonder what's coming up for the traditional social psychological types. Read it and give us feedback.