It would be good to be able to cache case/category structures / datasets / keyword dictionaries / workflows to allow users to add a new document via Therefore Go when offline / outside mobile network range. Also the ability to selectively take cases offline would also be good.
Examples for this might be a entering a new Timesheet form (using only index data) or completing a workflow task.
The driving force behind this for us is that we have many customers who travel to remote sites (e.g. mine sites etc) to do work where there is unreliable mobile coverage.