My clients are actually asking for a version of the collector app for AGOL without the map interface to allow speedy collection of point data by field operators. Would automatically default to current position when completing the form.
A simple interface to enable anyone with a smartphone to get an AGOL account and log data on behalf of the organisation without the need for complex map interface (this would push up adoption of AGOL accounts!).
Attribution of the feature service would provide form options (drop downs, text input, photos etc) as it does presently.